Confederate Organisations: Trans-Mississippi and Frontier Theatres

Note: From June 1861 until 26 May 1862, the Western Department held responsibility for much of the Trans-Mississippi theatre. See Western and Gulf Coast Theatres.

Confederate Organisations: Trans-Mississippi and Frontier Theatres

Note: From June 1861 until 26 May 1862, the Western Department held responsibility for much of the Trans-Mississippi theatre. See Western and Gulf Coast Theatres.

Major Departments

Trans-Mississippi Department

26 May 1862-26 May 1865

Paul Octave Hébert 26 May 1862, interim 30 July 1862

Theophilus Hunter Holmes 18 July 1862-14 January 1863 interim 17 January 1863

Edmund Kirby Smith 14 January 1863-19 April 1865

Simon Bolivar Buckner temporary 19 April 1865-22 April 1865

Edmund Kirby Smith 22 April 1865-26 May 1865

26 May 1862: The Trans-Mississippi Department was established to comprise Texas, the Indian Territory, Arkansas, Missouri, and Louisiana west of the Mississippi.

26 May 1862: Brigadier-General Paul Octave Hébert assumed temporary command of the Trans-Mississippi Department.

28 May 1862: Western Louisiana transferred from Department No 1 to the District of Eastern Texas and Western Louisiana in the Trans-Mississippi Department.

28 May 1862: The Eastern District of Texas was discontinued, and its territory incorporated into the District of Eastern Texas and Western Louisiana, in the Trans-Mississippi Department.

28 May 1862: The District of Eastern Texas and Western Louisiana was established in the Trans-Mississippi Department.

28 May 1862: The Sub-District of Houston transferred from the Eastern District of Texas to the District of Eastern Texas and Western Louisiana.

28 May 1862: The Western District of Texas transferred formally from the Department of Texas to the Trans-Mississippi Department.

28 May 1862: The Sub-District of Galveston was discontinued, and its territory transferred to the Western District of Texas.

28 May 1862: The Sub-District of the Rio Grande transferred from the Trans-Mississippi Department to the Western District of Texas.

28 May 1862: The Eastern Sub-District of Western Texas was established in the Western District of Texas.

28 May 1862: The District of Arkansas was established in the Trans-Mississippi Department.

28 May 1862: The Forces in Arkansas was discontinued, and incorporated into the District of Arkansas.

18 July 1862: Major-General Theophilus Hunter Holmes was appointed to command the Trans-Mississippi Department, arriving on 30 July 1862.

30 July 1862: Major-General Theophilus Hunter Holmes arrived to command the Trans-Mississippi Department.

20 August 1862: The District of Eastern Texas and Western Louisiana was discontinued, and divided into the District of Texas and the District of West Louisiana.

20 August 1862: The District of Texas was established in the Trans-Mississippi Department.

20 August 1862: The Trans-Mississippi District was discontinued, and its territory divided between the District of Missouri and the District of West Louisiana.

20 August 1862: The District of West Louisiana was established in the Trans-Mississippi Department, comprising Louisiana west of the Mississippi River.

20 August 1862: The District of Missouri was established in the Trans-Mississippi Department.

20 August 1862: The Sub-District of Houston transferred from the District of Eastern Texas and Western Louisiana to the District of Texas.

28 September 1862: The District of Missouri was discontinued, and its field forces incorporated into I Corps Trans Mississippi.

28 September 1862: The Southwest Army was established in the District of Texas.

28 September 1862: I Corps Trans-Mississippi was established to operate in north-western Arkansas, south-western Missouri, and the Indian Territory.

29 November 1862: The District of Texas, New Mexico, and Arizona was established in the Trans-Mississippi Department by extending the authority of the District of Texas over the District of Arizona and the New Mexico Territory.

29 November 1862: The First Sub-District of Texas was discontinued.

29 November 1862: The District of Arizona was discontinued, and incorporated into the District of Texas, New Mexico, and Arizona.

29 November 1862: The District of Texas was discontinued, and incorporated into the District of Texas, New Mexico, and Arizona.

29 November 1862: The Western District of Texas was discontinued, and renamed the Western Sub-District of Texas, New Mexico, and Arizona.

29 November 1862: The Western Sub-District of Texas, New Mexico, and Arizona was established.

29 November 1862: The Eastern Sub-District of Western Texas was discontinued, and renamed the Eastern Sub-District of Texas, New Mexico, and Arizona.

29 November 1862: The Eastern Sub-District of Texas, New Mexico, and Arizona was established in the District of Texas, New Mexico, and Arizona.

29 November 1862: The Sub-District of the Rio Grande transferred from the Western District of Texas to the District of Texas, New Mexico, and Arizona.

29 November 1862: The Southwest Army transferred from the District of Texas to the District of Texas, New Mexico, and Arizona.

14 January 1863: Lieutenant-General Edmund Kirby Smith was appointed to command the Trans-Mississippi Department, arriving on 17 January 1863.

17 January 1863: Lieutenant-General Edmund Kirby Smith arrived to command the Trans-Mississippi Department, succeeding Lieutenant-General Theophilus Hunter Holmes.

30 January 1863: I Corps Trans-Mississippi was discontinued, and forces assigned partly to the Southwest Army and partly to the Defences of Vicksburg.

9 February 1863: The Southwest Army was discontinued, and renamed the Trans-Mississippi Army.

9 February 1863: The Trans-Mississippi Army was established in the Trans-Mississippi Department, comprising all field forces west of the Mississippi.

18 March 1863: The District of Arkansas was extended to include Missouri and the Indian Territory.

8 September 1864: The Army of Missouri was established in the Trans-Mississippi Department, primarily from forces in Cavalry Corps Trans-Mississippi Army.

1 February 1865: The District of Arkansas transferred to the District of Texas, New Mexico, and Arizona.

19 April 1865: The District of Arkansas was discontinued, and its territory incorporated into the District of Arkansas and West Louisiana.

19 April 1865: The District of Western Louisiana was discontinued, and its territory incorporated into the District of Arkansas and West Louisiana.

19 April 1865: The District of Arkansas and West Louisiana was established in the Trans-Mississippi Department. It comprised the former District of Arkansas and the District of West Louisiana.

19 April 1865: Lieutenant-General Simon Bolivar Buckner assumed temporary command of the Trans-Mississippi Department, succeeding General Edmund Kirby Smith.

22 April 1865: General Edmund Kirby Smith resumed command of the Trans-Mississippi Department, succeeding Lieutenant-General Simon Bolivar Buckner.

26 May 1865: The District of Arkansas and West Louisiana surrendered.

26 May 1865: The District of Texas, New Mexico, and Arizona surrendered.

26 May 1865: The District of Indian Territory surrendered.

26 May 1865: The Eastern Sub-District of Texas, New Mexico, and Arizona surrendered.

26 May 1865: The Western Sub-District of Texas, New Mexico, and Arizona surrendered.

26 May 1865: The Northern Sub-District of Texas, New Mexico, and Arizona surrendered.

26 May 1865: The Sub-District of Houston surrendered.

26 May 1865: The Sub-District of the Rio Grande surrendered.

26 May 1865: The Trans-Mississippi Army surrendered.

26 May 1865: Reserve Corps Trans-Mississippi surrendered.

26 May 1865: The Trans-Mississippi Department surrendered.

Minor Departments, Districts and equivalents

Arizona Territory

District of Arizona

1 October 1861-29 November 1862

John Robert Baylor 1 October 1861-12 December 1861

Henry Hopkins Sibley 12 December 1861-29 November 1862

1 October 1861: The District of Arizona was established, comprising Arizona, New Mexico, western Texas, and the Indian Territory.

1 October 1861: Colonel John Robert Baylor assumed command of the District of Arizona.

12 December 1861: Brigadier-General Henry Hopkins Sibley assumed command of the District of Arizona, succeeding Lieutenant-Colonel John Robert Baylor.

14 December 1861: The Army of New Mexico was established in the District of Arizona.

26 May 1862: The Army of New Mexico was discontinued, and its field forces incorporated into the Trans-Mississippi Department.

26 May 1862: The District of Arizona transferred to the Trans-Mississippi Department.

26 May 1862: Brigadier-General Henry Hopkins Sibley retained command of the District of Arizona.

29 November 1862: The District of Arizona was discontinued, and incorporated into the District of Texas, New Mexico, and Arizona.

Arkansas

District of Arkansas

28 May 1862-19 April 1865

Thomas Carmichael Hindman 28 May 1862-7 March 1863

Theophilus Hunter Holmes 7 March 1863-24 July 1863

Sterling Price 24 July 1863-25 September 1863

Theophilus Hunter Holmes 25 September 1863-11 March 1864 interim 16 March 1864

Sterling Price 16 March 1864-1 August 1864

Thomas James Churchill 1 August 1864-4 August 1864

John Bankhead Magruder 4 August 1864-29 January 1865

Mosby Monroe Parsons temporary 29 January 1865-31 January 1865

John Bankhead Magruder 31 January 1865-15 February 1865

Mosby Monroe Parsons 15 February 1865-8 March 1865

Sterling Price 8 March 1865-12 March 1865

Mosby Monroe Parsons 12 March 1865-31 March 1865

James Fleming Fagan 31 March 1865-19 April 1865

28 May 1862: The District of Arkansas was established in the Trans-Mississippi Department.

28 May 1862: Major-General Thomas Carmichael Hindman was appointed to command the District of Arkansas, arriving on 2 June 1862.

28 May 1862: Forces in Arkansas was discontinued, and its field forces incorporated into the District of Arkansas.

2 June 1862: Major-General Thomas Carmichael Hindman arrived to command the District of Arkansas.

7 March 1863: Major-General Theophilus Hunter Holmes assumed command of the District of Arkansas, succeeding Major-General Thomas Carmichael Hindman.

18 March 1863: The District of Arkansas was extended to include Missouri and the Indian Territory.

24 July 1863: Major-General Sterling Price assumed temporary command of the District of Arkansas, succeeding Lieutenant-General Theophilus Hunter Holmes.

25 September 1863: Lieutenant-General Theophilus Hunter Holmes assumed command of the District of Arkansas, succeeding Major-General Sterling Price.

11 March 1864: Major-General Sterling Price was appointed to command the District of Arkansas, arriving on 16 March 1864, succeeding Lieutenant-General Theophilus Hunter Holmes.

16 March 1864: Major-General Sterling Price arrived to command the District of Arkansas, succeeding Lieutenant-General Theophilus Hunter Holmes.

1 August 1864: Brigadier-General Thomas James Churchill assumed command of the District of Arkansas, succeeding Major-General Sterling Price.

4 August 1864: Major-General John Bankhead Magruder assumed command of the District of Arkansas, succeeding Brigadier-General Thomas James Churchill.

29 January 1865: Major-General Mosby Monroe Parsons assumed temporary command of the District of Arkansas, succeeding Major-General John Bankhead Magruder.

31 January 1865: Major-General John Bankhead Magruder resumed command of the District of Arkansas, succeeding Brigadier-General Mosby Munroe Parsons.

1 February 1865: The District of Arkansas transferred to the District of Texas, New Mexico, and Arizona.

1 February 1865: #Major-General John Bankhead Magruder retained command of the District of Arkansas.

15 February 1865: Brigadier-General Mosby Munroe Parsons assumed command of the District of Arkansas, succeeding Major-General John Bankhead Magruder.

8 March 1865: Major-General Sterling Price assumed command of the District of Arkansas, succeeding Brigadier-General Mosby Monroe Parsons.

12 March 1865: Brigadier-General Mosby Monroe Parsons assumed command of the District of Arkansas, succeeding Major-General Sterling Price.

31 March 1865: Major-General James Fleming Fagan assumed command of the District of Arkansas, succeeding Major-General Mosby Monroe Parsons.

19 April 1865: The District of Arkansas was discontinued, and its territory incorporated into the District of Arkansas and West Louisiana.

District of Upper Arkansas

25 June 1861-10 January 1862

William Joseph Hardee 25 June 1861-10 January 1862

25 June 1861: The District of Upper Arkansas was established in the Western Department, comprising the part of Arkansas north of the White and Black Rivers, and north of the Arkansas River.

25 June 1861: Brigadier-General William Joseph Hardee was appointed to command the District of Upper Arkansas in the Western Department, arriving on 22 July 1861.

22 July 1861: Brigadier-General William Joseph Hardee arrived to command the District of Upper Arkansas in the Western Department.

10 January 1862: The District of Upper Arkansas was discontinued, and its territory transferred from The Western Department to the Trans-Mississippi District.

Indian Territory

Indian Territory

13 May 1861-10 September 1861

District of the Indian Territory

10 September 1861-22 November 1861

Department of the Indian Territory

22 November 1861-26 May 1862

District of the Indian Territory

26 May 1862-26 May 1865

Benjamin McCulloch 13 May 1861-22 November 1861

Albert Pike 22 November 1861-20 January 1862, de facto 20 January 1862-12 July 1862

Douglas Hancock Cooper 20 January 1862-26 May 1862

Albert Pike de facto 26 May 1862-3 November 1862

Douglas Hancock Cooper 26 May 1862-8 January 1862 interim 3 October 1863

William Steele 8 January 1863-11 December 1863

Samuel Bell Maxey 11 December 1863-9 January 1864

Douglas Hancock Cooper temporary 9 January 1864-9 May 1864

Samuel Bell Maxey 9 May 1864-21 July 1864

Douglas Hancock Cooper 21 July 1864-21 February 1865

Samuel Bell Maxey 21 February 1865-1 March 1865

Douglas Hancock Cooper 1 March 1865-26 May 1865

13 May 1861: Indian Territory was established, comprising approximately the territory of the later state of Oklahoma.

13 May 1861: Brigadier-General Benjamin McCulloch assumed command of the Indian Territory.

10 September 1862: Indian Territory transferred to the Western Department and was renamed as the District of the Indian Territory.

10 September 1861: The District of the Indian Territory was established in the Western Department.

10 September 1861: Brigadier-General Benjamin McCulloch assumed command of the District of the Indian Territory.

22 November 1861: The District of the Indian Territory was discontinued, and renamed as the Department of the Indian Territory.

22 November 1861: The Department of the Indian Territory was established, comprising the territory of the discontinued District of the Indian Territory.

22 November 1861: Brigadier-General Albert Pike assumed command of the Department of the Indian Territory.

20 January 1862: Colonel Douglas Hancock Cooper appointed to command of the Department of the Indian Territory; Brigadier-General Albert Pike retained de facto unofficial command.

26 May 1862: The Department of the Indian Territory was discontinued, and renamed as the District of the Indian Territory in the Trans-Mississippi Department.

26 May 1862: The District of Indian Territory was established in the Department of Trans-Mississippi.

26 May 1862: Colonel Douglas Hancock Cooper retained command of the District of Indian Territory although Brigadier-General Albert Pike retained de facto unofficial field command of much of the District of Indian Territory.

3 November 1862: Colonel Douglas Hancock Cooper assumed full command of the District of the Indian Territory.

8 January 1863: Brigadier-General William Steele was appointed to command the District of the Indian Territory, arriving on 3 October 1863, to succeed Colonel Douglas Hancock Cooper.

18 March 1863: The District of Arkansas was extended to include Missouri and the Indian Territory.

3 October 1863: Brigadier-General William Steele arrived to command the District of the Indian Territory, succeeding Brigadier-General Douglas Hancock Cooper.

11 December 1863: Brigadier-General Samuel Bell Maxey assumed command of the District of the Indian Territory, succeeding Brigadier-General William Steele.

9 January 1864: Brigadier-General Douglas Hancock Cooper assumed temporary command of the District of the Indian Territory, succeeding Brigadier-General Samuel Bell Maxey.

9 May 1864: Brigadier-General Samuel Bell Maxey assumed command of the District of the Indian Territory, succeeding Brigadier-General Douglas Hancock Cooper.

21 July 1864: Brigadier-General Douglas Hancock Cooper assumed command of the District of the Indian Territory, succeeding Brigadier-General Samuel Bell Maxey.

21 February 1865: Brigadier-General Samuel Bell Maxey assumed command of the District of Indian Territory, succeeding Brigadier-General Douglas Hancock Cooper.

1 March 1865: Brigadier-General Douglas Hancock Cooper assumed command of the District of Indian Territory, succeeding Brigadier-General Samuel Bell Maxey.

26 May 1865: The District of Indian Territory surrendered.

Louisiana

District of West Louisiana

20 August 1862-19 April 1865

District of Arkansas and West Louisiana

19 April 1865-26 May 1865

Richard Taylor 20 August 1862-10 June 1864

John George Walker 10 June 1864-4 August 1864

Simon Bolivar Buckner 4 August 1864-30 March 1865

John George Walker 30 March 1865-19 April 1865

Simon Bolivar Buckner 19 April 1865-26 May 1865

20 August 1862: The District of West Louisiana was established in the Trans-Mississippi Department, comprising Louisiana west of the Mississippi River.

20 August 1862: The Trans-Mississippi District was discontinued, and divided between the District of Missouri and the District of West Louisiana.

20 August 1862: Major-General Richard Taylor assumed command of the District of West Louisiana.

10 June 1864: Major-General John George Walker assumed command of the District of West Louisiana, succeeding Lieutenant-General Richard Taylor.

4 August 1864: Major-General Simon Bolivar Buckner assumed command of the District of West Louisiana, succeeding Major-General John George Walker.

30 March 1865: Major-General John George Walker assumed command of the District of West Louisiana, succeeding Lieutenant-General Simon Bolivar Buckner.

19 April 1865: The District of Western Louisiana was discontinued, and its territory incorporated into the District of Arkansas and West Louisiana.

19 April 1865: The District of Arkansas and West Louisiana was established in the Trans-Mississippi Department. It comprised the former District of Arkansas and the District of West Louisiana.

19 April 1865: Lieutenant-General Simon Bolivar Buckner assumed command of the District of Arkansas and West Louisiana.

26 May 1865: The District of Arkansas and West Louisiana surrendered.

Missouri

Trans-Mississippi District

10 January 1862-20 August 1862

District of Missouri

20 August 1862-28 September 1862

Earl Van Dorn 10 January 1862-31 May 1862

Thomas Carmichael Hindman 26 May 1862-2 July 1862

Vacant 3 July 1862-20 August 1862

Sterling Price 20 August 1862-28 September 1862

10 January 1862: The Trans-Mississippi District was established in the Western Department, comprising Louisiana north of the Red River, the Indian Territory and the states of Arkansas and Missouri, except for the territory east of St Francis County to Scott County in Missouri.

10 January 1862: Major-General Earl Van Dorn was appointed to command the Trans-Mississippi District, arriving on 29 January 1862.

29 January 1862: Major-General Earl Van Dorn arrived to command the Trans-Mississippi District.

11 May 1862: Forces in Arkansas was established in the Trans-Mississippi District, comprising field forces in Arkansas.

26 May 1862: The Forces in Arkansas transferred interim with the Trans-Mississippi District to the Trans-Mississippi Department.

26 May 1862: The Trans-Mississippi District transferred from the Western Department to the Trans-Mississippi Department.

26 May 1862: Major-General Thomas Carmichael Hindman was appointed to command the Trans-Mississippi District, arriving on 31 May 1862, to succeed Major-General Earl Van Dorn.

26 May 1862: Major-General Earl Van Dorn retained interim command of the Trans-Mississippi District.

28 May 1862: Forces in Arkansas was discontinued, and incorporated into the District of Arkansas.

31 May 1862: Major-General Thomas Carmichael Hindman arrived to command the Trans-Mississippi District, succeeding Major-General Earl Van Dorn.

3 July 1862: Command of the Trans-Mississippi District became vacant.

20 August 1862: The Trans-Mississippi District was discontinued, and its territory divided between the District of Missouri and the District of West Louisiana.

20 August 1862: The District of Missouri was established in the Trans-Mississippi Department.

20 August 1862: Major-General Sterling Price assumed command of the District of Missouri.

28 September 1862: The District of Missouri was discontinued, and its field forces incorporated into I Corps Trans Mississippi.

Texas

Department of Texas

11 April 1861-26 May 1862

Earl Van Dorn 11 April 1861-14 August 1861 interim 4 September 1861

Henry Eustace McCullough temporary 4 September 1861-18 September 1861

Paul Octave Hébert 14 August 1861-26 May 1862

11 April 1861: The Department of Texas was established.

11 April 1861: Colonel Earl Van Dorn was appointed to command of the Department of Texas, arriving on 21 April 1861.

21 April 1861: Colonel Earl Van Dorn arrived to command the Department of Texas.

25 June 1861: The Defences of Galveston was established in the Department of Texas.

14 August 1861: Colonel Paul Octave Hébert appointed to command the Department of Texas, arriving on September 18 1861, to succeed Brigadier-General Earl Van Dorn.

4 September 1861: Colonel Henry Eustace McCullough assumed temporary command of the Department of Texas, pending the arrival of Brigadier-General Paul Octave Hébert.

18 September 1861: Brigadier-General Paul Octave Hébert arrived to command of the Department of Texas, succeeding temporary commander Colonel Henry Eustace McCullough.

2 October 1861: The Defences of Galveston was discontinued, and its territory transferred to the District of Galveston. 2 October 1861: The District of Galveston was established in the Department of Texas.

26 October 1861: The Defences of Pass Cavallo was established in the Department of Texas.

3 December 1861: The Western District of Texas was established in the Department of Texas.

3 January 1862: The District of Houston was established in the Department of Texas.

10 February 1862: The Eastern District of Texas “District of Eastern Texas” was established in the Department of Texas.

25 February 1862: The District of Galveston was discontinued.

25 February 1862: The Sub-District of Galveston was established in the Department of Texas, comprising the former District of Galveston.

25 February 1862: The District of Houston was discontinued, and renamed the Sub-District of Houston.

25 February 1862: The Sub-District of Houston was established in the Department of Texas, comprising the former District of Houston.

25 February 1862: The Sub-District of the Rio Grande was established in the Department of Texas.

26 May 1862: The Sub-District of Houston transferred interim from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: The Sub-District of Galveston transferred interim from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: The Sub-District of the Rio Grande transferred interim from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: The Defences of Pass Cavallo transferred interim from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: The Eastern District of Texas transferred from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: The Western District of Texas transferred from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: The Department of Texas was discontinued, and its territory incorporated into the Trans-Mississippi Department.

26 May 1862: The Army of New Mexico was discontinued, and its field forces incorporated into the Trans-Mississippi Department.

26 May 1862: The Trans-Mississippi District transferred from the Western Department to the Trans-Mississippi Department.

26 May 1862: The District of Indian Territory was established in the Department of Trans-Mississippi from the Department of the Indian Territory.

26 May 1862: The Forces in Arkansas transferred interim with the Trans-Mississippi District to the Trans-Mississippi Department.

Defences of Galveston Texas

25 June 1861-2 October 1861

District of Galveston

2 October 1861-25 February 1862

Sub-District of Galveston

25 February 1862-28 May 1862

John Creed Moore 25 June 1861-2 October 1861

John Creed Moore 2 October 1861-7 December 1861 interim 10 December 1861

Ebenezer B Nichols 7 December 1861-28 May 1862

25 June 1861: The Defences of Galveston was established in the Department of Texas, comprising the forces collected on Galveston Island, Bolivar Point, and the Galveston Peninsula.

25 June 1861: Colonel John Creed Moore assumed command of the Defences of Galveston.

2 October 1861: The Defences of Galveston was discontinued, and its territory transferred to the District of Galveston.

2 October 1861: The District of Galveston was established in the Department of Texas, comprising the former Defences of Galveston, Galveston Island, Galveston Bay, Virginia Point, and the Bolivar Peninsula.

2 October 1861: Colonel John Creed Moore assumed command of the District of Galveston.

7 December 1861: State Brigadier-General Ebenezer B Nichols was appointed to command the District of Galveston, arriving on 10 December 1861.

10 December 1861: State Brigadier-General Ebenezer B Nichols arrived to command the District of Galveston, succeeding Colonel John Creed Moore.

25 February 1862: The District of Galveston was discontinued, and renamed the Sub-District of Galveston.

25 February 1862: The Sub-District of Galveston was established in the Department of Texas, comprising the former District of Galveston.

25 February 1862: Colonel Ebenezer B Nichols assumed command of the Sub-District of Galveston.

26 May 1862: The Sub-District of Galveston transferred interim from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: Colonel Ebenezer B Nichols retained command of the Sub-District of Galveston.

28 May 1862: The Sub-District of Galveston was discontinued, and its territory transferred to the Western District of Texas.

District of Houston Texas

3 January 1862-25 February 1862

Sub-District of Houston

25 February 1862-26 May 1865

John Creed Moore 3 January 1862-25 February 1862

John C Bowen 25 February 1862-3 June 1862

George M Flournoy 3 June 1862-8 July 1862

Xavier Blanchard Debray 8 July 1862-26 May 1865

3 January 1862: The District of Houston was established in the Department of Texas, comprising Houston, Harrisburg, and Lewis’ Bayou.

3 January 1862: Colonel John Creed Moore assumed command of the District of Houston.

25 February 1862: The District of Houston was discontinued, and renamed the Sub-District of Houston.

25 February 1862: The Sub-District of Houston was established in the Department of Texas, comprising the former District of Galveston.

25 February 1862: Colonel John C Bowen assumed command of the Sub-District of Houston.

26 May 1862: The Sub-District of Houston transferred interim from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: Colonel John C Bowen retained command of the Sub-District of Houston.

28 May 1862: The Sub-District of Houston transferred from the Eastern District of Texas to the District of Eastern Texas and Western Louisiana.

28 May 1862: Colonel John C Bowen retained command of the Sub-District of Houston.

3 June 1862: Colonel George M Flournoy assumed command of the Sub-District of Houston, succeeding Colonel John C Bowen.

8 July 1862: Colonel Xavier Blanchard Debray assumed command of the Sub-District of Houston, succeeding Colonel George M Flournoy.

20 August 1862: The Sub-District of Houston transferred from the District of Eastern Texas and Western Louisiana to the District of Texas.

20 August 1862: Colonel Xavier Blanchard Debray retained command of the Sub-District of Houston.

29 November 1862: The Sub-District of Houston transferred from the District of Texas to the District of Texas, New Mexico, and Arizona.

29 November 1862: Colonel Xavier Blanchard Debray retained command of the Sub-District of Houston.

3 June 1863: The Sub-District of Houston was extended to include Austin, Harris, Galveston, Liberty, Chambers and Jefferson counties of Texas.

26 May 1865: The Sub-District of Houston surrendered.

Defences of Pass Cavallo Texas

26 October 1861-27 November 1862

John W Glenn 26 October 1861-27 November 1862

26 October 1861: The Defences of Pass Cavallo was established in the Department of Texas.

26 October 1861: Lieutenant John W Glenn assumed command of the Defences of Pass Cavallo.

26 May 1862: The Defences of Pass Cavallo transferred interim from the discontinued Department of Texas to the Trans-Mississippi Department.

26 May 1862: Lieutenant John W Glenn retained command of the Defences of Pass Cavallo.

28 May 1862: The Defences of Pass Cavallo was formally transferred from the discontinued Department of Texas to the Trans-Mississippi Department.

27 November 1863: The Defences of Pass Cavallo was discontinued.

Sub-District of the Rio Grande

25 February 1862-26 May 1865

Hamilton Prioleau Bee 25 February 1862-26 May 1865

25 February 1862: The Sub-District of the Rio Grande was established in the Department of Texas, comprising the vicinity of San Antonio, Victoria, Indianola and Saluria.

25 February 1862: State Brigadier-General Hamilton Prioleau Bee appointed to command the Sub-District of the Rio Grande, arriving on 24 April 1862.

24 April 1862: Brigadier-General Hamilton Prioleau Bee arrived to command the Sub-District of the Rio Grande.

26 May 1862: The Sub-District of the Rio Grande transferred interim from the Department of Texas to the Trans-Mississippi Department.

28 May 1862: The Sub-District of the Rio Grande transferred from the Trans-Mississippi Department to the Western District of Texas.

28 May 1862: Brigadier-General Hamilton Prioleau Bee retained command of the Sub-District of the Rio Grande.

29 November 1862: The Sub-District of the Rio Grande transferred from the Western District of Texas to the District of Texas, New Mexico, and Arizona.

29 November 1862: Brigadier-General Hamilton Prioleau Bee retained command of the Sub-District of the Rio Grande.

26 May 1865: The Sub-District of the Rio Grande surrendered.

District of Eastern Texas and Western Louisiana

28 May 1862-20 August 1862

District of Texas

20 August 1862-29 November 1862

District of Texas, New Mexico, and Arizona

29 November 1862-26 May 1865

Paul Octave Hébert 28 May 1862-10 October 1862 interim 20 October 1862

John Bankhead Magruder 10 October 1862-27 November 1862

Hamilton Prioleau Bee temporary 27 November 1862-29 November 1862

John Bankhead Magruder 29 November 1862-4 August 1864 interim 6 August 1864

John George Walker 4 August 1864-30 March 1865 interim 4 April 1865

John Bankhead Magruder 30 March 1865-26 May 1865

28 May 1862: The District of Eastern Texas and Western Louisiana was established in the Trans-Mississippi Department, comprising the former Eastern District of Texas, the Sub-District of Houston and the former Sub-District of Galveston and included the areas west of the Mississippi River and south of the Red River.

28 May 1862: Brigadier-General Paul Octave Hébert assumed command of the District of Eastern Texas and Western Louisiana.

20 August 1862: The Sub-District of Houston transferred from the District of Eastern Texas and Western Louisiana to the District of Texas.

20 August 1862: The District of Eastern Texas and Western Louisiana was discontinued, and divided into the District of Texas and the District of West Louisiana.

20 August 1862: The District of Texas was established in the Trans-Mississippi Department.

20 August 1862: Brigadier-General Paul Octave Hébert was appointed to command the District of Texas, arriving on 12 September 1862.

12 September 1862: Brigadier-General Paul Octave Hébert arrived to command the District of Texas.

28 September 1862: The Southwest Army was established in the District of Texas.

10 October 1862: Major-General John Bankhead Magruder was appointed to command of the District of Texas, arriving 20 October 1862.

15 October 1862: The First Sub-District of Texas was established.

15 October 1862: The Second Sub-District of Texas was established.

20 October 1862: Major-General John Bankhead Magruder arrived to command the District of Texas, succeeding Brigadier-General Paul Octave Hébert.

27 November 1862: Brigadier-General Hamilton Prioleau Bee assumed temporary command of the District of Texas, succeeding Major-General John Bankhead Magruder.

29 November 1862: The First Sub-District of Texas was discontinued.

29 November 1862: The Second Sub-District of Texas was discontinued.

29 November 1862: The District of Texas was discontinued, and incorporated into the District of Texas, New Mexico, and Arizona.

29 November 1862: The District of Texas, New Mexico, and Arizona was established in the Trans-Mississippi Department by extending its authority over the District of Texas, the District of Arizona, and the New Mexico Territory.

29 November 1862: Major-General John Bankhead Magruder assumed command of the District of Texas, New Mexico, and Arizona.

29 November 1862: The District of Arizona was discontinued, and incorporated into the District of Texas, New Mexico, and Arizona.

29 November 1862: The District of Texas was discontinued, and incorporated into the District of Texas, New Mexico, and Arizona.

29 November 1862: The Western District of Texas was discontinued, and renamed the Western Sub-District of Texas, New Mexico, and Arizona.

29 November 1862: The Western Sub-District of Texas, New Mexico, and Arizona was established in the District of Texas, New Mexico, and Arizona.

29 November 1862: The Eastern Sub-District of Texas, New Mexico, and Arizona was established in the District of Texas, New Mexico, and Arizona.

29 November 1862: The Sub-District of the Rio Grande transferred from the Western District of Texas to the District of Texas, New Mexico, and Arizona.

29 November 1862: The Sub-District of Houston transferred from the District of Texas to the District of Texas, New Mexico, and Arizona.

29 November 1862: The Southwest Army transferred from the District of Texas to the District of Texas, New Mexico, and Arizona.

4 March 1863: The Eastern Sub-District of Texas, New Mexico, and Arizona was extended to include Lavaca and Victoria.

30 May 1863: The Third Sub-District of Texas, New Mexico, and Arizona was established.

3 June 1863: The Sub-District of Houston was extended to include Austin, Harris, Galveston, Liberty, Chambers and Jefferson counties of Texas.

5 June 1863: The Third Sub-District of Texas, New Mexico, and Arizona was discontinued, and renamed the Northern Sub-District of Texas, New Mexico, and Arizona.

5 June 1863: The Northern Sub-District was established in the District of Texas, New Mexico, and Arizona.

4 August 1864: Major-General John George Walker was appointed to command the District of Texas, New Mexico, and Arizona, arriving on 6 August 1864, to succeed Major-General John Bankhead Magruder.

6 August 1864: Major-General John George Walker arrived to command the District of Texas, New Mexico, and Arizona, succeeding Major-General John Bankhead Magruder.

1 February 1865: The District of Arkansas transferred to the District of Texas, New Mexico, and Arizona.

30 March 1865: Major-General John Bankhead Magruder was appointed to command the District of Texas, New Mexico, and Arizona, arriving on 4 April 1865, to succeed Major-General John George Walker.

4 April 1865: Major-General John Bankhead Magruder arrived to command the District of Texas, New Mexico, and Arizona, succeeding Major-General John George Walker.

19 April 1865: The District of Arkansas was discontinued, and its territory incorporated into the District of Arkansas and West Louisiana.

26 May 1865: The District of Texas, New Mexico, and Arizona surrendered.

First Sub-District of Texas

15 October 1862-29 November 1862

Paul Octave Hébert 15 October 1862-29 November 1862

15 October 1862: The First Sub-District of Texas was established in the District of Texas.

15 October 1862: Brigadier-General Paul Octave Hébert assumed command of the First Sub-District of Texas.

29 November 1862: The First Sub-District of Texas was discontinued.

Second Sub-District of Texas

15 October 1862-29 November 1862

Vacant 15 October 1862-29 November 1862

15 October 1862: The Second Sub-District Texas was established in the District of Texas.

15 October 1862: Command of the Second Sub-District of Texas remained vacant.

29 November 1862: The Second Sub-District of Texas was discontinued.

Third Sub-District of Texas, New Mexico, and Arizona

30 May 1863-5 June 1863

Northern Sub-District of Texas, New Mexico, and Arizona

5 June 1863-26 May 1865

Smith Pyne Bankhead 30 May 1863-9 July 1863 interim 29 August 1863

Henry Eustace McCullough 9 July 1863-26 May 1865

30 May 1863: The Third Sub-District of Texas, New Mexico, and Arizona was established.

30 May 1863: Colonel Smith Pyne Bankhead assumed command of the Third Sub-District of Texas, New Mexico, and Arizona.

5 June 1863: The Third Sub-District of Texas was discontinued, and renamed the Northern Sub-District of Texas, New Mexico, and Arizona.

5 June 1863: The Northern Sub-District was established in the District of Texas, New Mexico, and Arizona.

5 June 1863: Colonel Smith Pyne Bankhead was appointed to command of the Northern Sub-District of Texas, New Mexico, and Arizona, arriving on 9 July 1863.

9 July 1863: Brigadier General Henry Eustace McCullough was appointed to command the Northern Sub-District of Texas, New Mexico, and Arizona, arriving on 29 August 1863, to succeed Colonel Smith Pyne Bankhead.

29 August 1863: Brigadier-General Henry Eustace McCullough arrived to command the Northern Sub-District of Texas, New Mexico, and Arizona, succeeding Colonel Smith Pyne Bankhead.

26 May 1865: The Northern Sub-District of Texas, New Mexico, and Arizona surrendered.

Eastern District of Texas

10 February 1862-28 May 1862

Eastern Sub-District of Western Texas

28 May 1862-29 November 1862

Eastern Sub-District of Texas, New Mexico, and Arizona

29 November 1862-26 May 1865

Paul Octave Hébert 10 February 1862-28 May 1862

Xavier Blanchard Debray 28 May 1862-13 February 1863

William Read Scurry 13 February 1863-30 May 1863

Xavier Blanchard Debray temporary 30 May 1863-10 June 1863

William Read Scurry temporary 10 June 1863-1 July 1863

Philip Noland Luckett temporary 1 July 1863-15 August 1863 interim 16 August 1863

Henry Eustace McCullough 15 August 1863-29 August 1863

Philip Noland Luckett temporary 29 August 1863-23 November 1863

James Edwin Slaughter 23 November 1863-18 March 1864

William Steele 18 March 1864-26 May 1865

10 February 1862: The Eastern District of Texas “District of Eastern Texas” was established in the Department of Texas, comprising the territory between the northern and eastern boundaries of Texas, the eastern shore of Galveston Bay and the left bank of the Trinity River to the intersection of the Cross-Timbers at Alton, and then following the Cross-Timbers to the Red River.

10 February 1862: Brigadier-General Paul Octave Hébert assumed command of the Eastern District of Texas.

26 May 1862: The Eastern District of Texas transferred from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: Brigadier-General Paul Octave Hébert retained command of the Eastern District of Texas.

28 May 1862: The Eastern District of Texas was discontinued, and its territory incorporated into the District of Eastern Texas and Western Louisiana, in the Trans-Mississippi Department.

28 May 1862: The Eastern Sub-District of Western Texas was established in the Western District of Texas, comprising Texas between the Sabine River on the east and a line beginning at Watson’s Ferry on the Sabine and running along the southern boundary of Panola, Rusk, Cherokee, Anderson, Freestone, and Limestone counties, to Marlin on the Brazos River, then up the Brazos to McLennan, then along the western boundary to Falls, Bell, Williamson, Travis, Bastrop, Fayette, Colorado, Wharton, and Matagorda counties to Pass Cavallo.

28 May 1862: Colonel Xavier Blanchard Debray assumed command of the Eastern Sub-District of Western Texas.

29 November 1862: The Eastern Sub-District of Western Texas was discontinued, and renamed the Eastern Sub-District of Texas, New Mexico, and Arizona.

29 November 1862: The Eastern Sub-District of Texas, New Mexico, and Arizona was established in the District of Texas, New Mexico, and Arizona.

29 November 1862: Colonel Xavier Blanchard Debray retained command of the Eastern Sub-District of Texas, New Mexico, and Arizona.

13 February 1863: Brigadier-General William Read Scurry assumed command of the Eastern Sub-District of Texas, New Mexico, and Arizona, succeeding Colonel Xavier Blanchard Debray.

4 March 1863: The Eastern Sub-District of Texas, New Mexico, and Arizona was extended to include Lavaca and Victoria.

30 May 1863: Colonel Xavier Blanchard Debray assumed temporary command of the Eastern Sub-District of Texas, New Mexico, and Arizona, succeeding Brigadier-General William Read Scurry.

10 June 1863: Brigadier-General William Read Scurry assumed temporary command of the Eastern Sub-District of Texas, New Mexico, and Arizona, succeeding Colonel Xavier Blanchard Debray.

1 July 1863: Colonel Philip Noland Luckett assumed temporary command of the Eastern Sub-District of Texas, New Mexico, and Arizona, succeeding Brigadier-General William Read Scurry.

15 August 1863: Brigadier-General Henry Eustace McCullough was appointed to command the Eastern Sub-District of Texas, New Mexico, and Arizona, arriving on 16 August 1863.

16 August 1863: Brigadier-General Henry Eustace McCullough arrived to command the Eastern Sub-District of Texas, New Mexico, and Arizona, succeeding Colonel Philip Noland Luckett.

29 August 1863: Colonel Philip Noland Luckett assumed temporary command of the Eastern Sub-District of Texas, New Mexico, and Arizona, succeeding Brigadier-General Henry Eustace McCullough.

23 November 1863: Brigadier-General James Edwin Slaughter assumed command of the Eastern Sub-District of Texas, New Mexico, and Arizona, succeeding Colonel Phillip Noland Luckett.

18 March 1864: Brigadier-General William Steele assumed command of the Eastern Sub-District of Texas, New Mexico, and Arizona, succeeding Brigadier-General James Edwin Slaughter.

26 May 1865: The Eastern Sub-District of Texas, New Mexico, and Arizona surrendered.

Western District of Texas

3 December 1861-29 November 1862

Western Sub-District of Texas, New Mexico, and Arizona

29 November 1862-26 May 1865

Henry Eustace McCullough 3 December 1861–23 June 1863

Hamilton Prioleau Bee 23 June 1863-26 June 1864

Thomas Fenwick Drayton 26 June 1864-25 October 1864

James Edwin Slaughter 25 October 1864-26 May 1865

3 December 1861: The Western District of Texas was established in the Department of Texas, comprising all of Texas not subsequently to be assigned to the Eastern District of Texas.

3 December 1861: Colonel Henry Eustace McCullough assumed command of the Western District of Texas.

26 May 1862: The Western District of Texas transferred from the Department of Texas to the Trans-Mississippi Department.

26 May 1862: Brigadier-General Henry Eustace McCullough retained command of the Western District of Texas.

28 May 1862: The Western District of Texas transferred formally from the Department of Texas to the Trans-Mississippi Department.

28 May 1862: The Sub-District of Galveston was discontinued, and its territory transferred to the Western District of Texas.

28 May 1862: The Eastern Sub-District of Western Texas was established in the Western District of Texas.

29 November 1862: The Western District of Texas was discontinued, and renamed the Western Sub-District of Texas, New Mexico, and Arizona.

28 May 1862: The Eastern Sub-District of Western Texas was discontinued, and renamed the Eastern Sub-District of Texas, New Mexico, and Arizona.

28 May 1862: The Sub-District of the Rio Grande transferred from the Western District of Texas to the District of Texas, New Mexico, and Arizona.

29 November 1862: The Western Sub-District of Texas, New Mexico, and Arizona was established. It comprised Texas bounded on the east by the Eastern Sub-District, on the north by the Northern Sub-District and including the remainder of the state.

29 November 1862: Brigadier-General Henry Eustace McCullough retained command of the Western Sub-District of Texas, New Mexico, and Arizona.

29 November 1862: The Eastern Sub-District of Texas, New Mexico, and Arizona was established in the District of Texas, New Mexico, and Arizona.

23 June 1863: Brigadier-General Hamilton Prioleau Bee assumed command of the Western Sub-District of Texas, New Mexico, and Arizona, succeeding Brigadier-General Henry Eustace McCullough.

26 June 1864: Brigadier-General Thomas Fenwick Drayton assumed command of the Western Sub-District of Texas, New Mexico, and Arizona, succeeding Brigadier-General Hamilton Prioleau Bee.

25 October 1864: Brigadier-General James Edwin Slaughter assumed command of the Western Sub-District of the District of Texas, New Mexico, and Arizona, succeeding Brigadier-General Thomas Fenwick Drayton.

26 May 1865: The Western Sub-District of Texas, New Mexico, and Arizona surrendered.

Major Armies

Southwest Army

28 September 1862-9 February 1863

Trans-Mississippi Army

9 February 1863-26 May 1865

Thomas Carmichael Hindman 28 September 1862-14 January 1863 interim 17 January 1863

Edmund Kirby Smith 14 January 1863-19 April 1865

Simon Bolivar Buckner temporary 19 April 1865-22 April 1865

Edmund Kirby Smith 22 April 1865-26 May 1865

28 September 1862: The Southwest Army was established in the District of Texas.

28 September 1862: Major-General Thomas Carmichael Hindman assumed command of the Southwest Army.

29 November 1862: The Southwest Army transferred from the District of Texas to the District of Texas, New Mexico, and Arizona.

29 November 1862: Major-General Thomas Carmichael Hindman retained command of the Southwest Army.

January 14e 1862: Lieutenant-General Edmund Kirby Smith assumed temporary command of the Southwest Army, arriving on 17 January 1863.

17 January 1863: Lieutenant-General Edmund Kirby Smith arrived to command the Southwest Army, succeeding Major-General Thomas Carmichael Hindman.

30 January 1863: I Corps Trans-Mississippi was discontinued, and its forces assigned partly to the Southwest Army and partly to the Defences of Vicksburg.

9 February 1863: The Southwest Army was discontinued, and renamed the Trans-Mississippi Army.

9 February 1863: The Trans-Mississippi Army was established in the Trans-Mississippi Department, comprising all field forces west of the Mississippi.

9 February 1863: Lieutenant-General Edmund Kirby Smith assumed command of the Trans-Mississippi Army.

4 August 1864: I Corps Trans-Mississippi was re-established in the Trans-Mississippi Army.

4 August 1864: II Corps Trans-Mississippi was re-established in the Trans-Mississippi Army.

4 August 1864: III Corps Trans-Mississippi was established in the Trans-Mississippi Army.

4 August 1864: Cavalry Corps Trans-Mississippi was established in the Trans-Mississippi Army.

4 September 1864: The Army of Missouri was established in the Trans-Mississippi Department, primarily from forces in Cavalry Corps Trans-Mississippi Army.

4 September 1864: Cavalry Corps Trans-Mississippi was discontinued, and its forces designated as the Army of Missouri.

10 September 1864: Reserve Forces of Texas was discontinued and renamed Reserve Corps Trans-Mississippi in the Trans-Mississippi Army.

10 September 1864: Reserve Corps Trans-Mississippi was established in the Trans-Mississippi Army.

3 December 1864: Cavalry Corps Trans-Mississippi was re-established in the Trans-Mississippi Army.

12 December 1864: The Army of Missouri was discontinued, and its forces returned to the Trans-Mississippi Army.

12 March 1865: Cavalry Corps Trans-Mississippi was discontinued.

31 March 1865: I Corps Trans-Mississippi was discontinued.

31 March 1865: II Corps Trans-Mississippi was discontinued.

31 March 1865: III Corps Trans-Mississippi was discontinued.

19 April 1865: Lieutenant-General Simon Bolivar Buckner assumed temporary command of the Trans-Mississippi Army, succeeding General Edmund Kirby Smith.

22 April 1865: General Edmund Kirby Smith resumed command of the Trans-Mississippi Army, succeeding Lieutenant-General Simon Bolivar Buckner.

26 May 1865: Reserve Corps Trans-Mississippi surrendered.

26 May 1865: The Trans-Mississippi Army surrendered.

Minor Armies, Corps, and equivalents

Forces in Arkansas

11 May 1862-28 May 1862

John Selden Roane 11 May 1862-28 May 1862

11 May 1862: Forces in Arkansas was established in the Trans-Mississippi District, comprising field forces in Arkansas.

11 May 1862: Brigadier-General John Selden Roane assumed command of Forces in Arkansas.

26 May 1862: The Forces in Arkansas transferred interim with the Trans-Mississippi District to the Trans-Mississippi Department.

26 May 1862: Brigadier-General John Selden Roane retained command of Forces in Arkansas.

28 May 1862: Forces in Arkansas was discontinued, and incorporated into the District of Arkansas.

“Army of Liberation”

23 June 1861-1 September 1861

Gideon Johnson Pillow 23 June 1861-1 September 1861

23 June 1861: The Army of Liberation was established unofficially, comprising forces collected at New Madrid, Missouri.

23 June 1861: State Major-General Gideon Johnson Pillow assumed command of the Army of Liberation.

1 September 1861: The Army of Liberation was discontinued, and incorporated into the field forces of the Western Department.

Army of New Mexico

14 December 1861-26 May 1862

Henry Hopkins Sibley 14 December 1861-26 May 1862

14 December 1861: The Army of New Mexico was established in the District of Arizona.

14 December 1861: Brigadier-General Henry Hopkins Sibley assumed command of the Army of New Mexico.

26 May 1862: The Army of New Mexico was discontinued, and its field forces incorporated into the Trans-Mississippi Department.

Forces in Missouri

2 July 1861-4 August 1861

Western Army Missouri

4 August 1861-19 January 1862

Benjamin McCulloch 2 July 1861-3 August 1861

William Joseph Hardee 3 August 1861-4 August 1861

Benjamin McCulloch 4 August 1861-4 March 1862

2 July 1861: The Forces in Missouri was established in the Western Department.

2 July 1861: Brigadier-General Benjamin McCulloch assumed command of Forces in Missouri.

3 August 1861: Brigadier-General William Joseph Hardee assumed command of Forces in Missouri, succeeding Brigadier-General Benjamin McCulloch.

4 August 1861: The Forces in Missouri was discontinued, and incorporated into the Western Army.

4 August 1861: The “Western Army” was established unofficially in the Western Department, comprising the former Forces in Missouri.

4 August 1861: Brigadier-General Benjamin McCulloch assumed command of the “Western Army”.

19 January 1862: The “Western Army” was discontinued, and incorporated into the Army of the West

19 January 1862: The Army of the West was established in the Western Department.

19 January 1862: Major-General Earl Van Dorn was appointed to command of the Army of the West, arriving on 4 March 1862.

19 January 1862: Brigadier-General Benjamin McCulloch assumed interim command of the Army of the West.

I Corps Trans-Mississippi

28 September 1862-30 January 1863

4 August 1864-31 March 1865

Vacant 28 September 1862-30 January 1863

Simon Bolivar Buckner 4 August 1864-31 March 1865

28 September 1862: I Corps Trans-Mississippi was established to operate in north-western Arkansas, south-western Missouri, and the Indian Territory.

28 September 1862: Command of I Corps Trans-Mississippi remained vacant.

30 January 1863: I Corps Trans-Mississippi was discontinued, and forces assigned to the Southwest Army or to the Defences of Vicksburg.

4 August 1864: I Corps Trans-Mississippi was established in the Trans-Mississippi Army.

4 August 1864: Major-General Simon Bolivar Buckner assumed command of III Corps Trans-Mississippi.

31 March 1865: I Corps Trans-Mississippi was discontinued.

II Corps Trans-Mississippi

4 August 1864-31 March 1865

John Bankhead Magruder 4 August 1864-31 March 1865

4 August 1864: II Corps Trans-Mississippi was established in the Trans-Mississippi Army.

4 August 1864: Major-General John Bankhead Magruder assumed command of II Corps Trans-Mississippi.

31 March 1865: II Corps Trans-Mississippi was discontinued.

III Corps Trans-Mississippi

4 August 1864-31 March 1865

John George Walker 4 August 1864-31 March 1865

4 August 1864: III Corps Trans-Mississippi was established in the Trans-Mississippi Army.

4 August 1864: Major-General John George Walker assumed command of III Corps Trans-Mississippi.

31 March 1865: III Corps Trans-Mississippi was discontinued.

Cavalry Corps Trans-Mississippi

4 August 1864-8 September 1864

Army of Missouri

8 September 1864-12 December 1864

Cavalry Corps Trans-Mississippi

3 December 1864-12 March 1865

Sterling Price 4 August 1864-3 December 1864

John Bullock Clark 3 December 1864-12 December 1864

Sterling Price 3 December 1864-12 March 1865

4 August 1864: Cavalry Corps Trans-Mississippi was established in the Trans-Mississippi Army.

4 August 1864: Major-General Sterling Price was appointed to command Cavalry Corps Trans-Mississippi, arriving on 28 August 1864.

28 August 1864: Major-General Sterling Price arrived to command Cavalry Corps Trans-Mississippi.

8 September 1864: Cavalry Corps Trans-Mississippi was discontinued, and its forces designated the Army of Missouri.

8 September 1864: The Army of Missouri was established in the Trans-Mississippi Department, primarily from forces in Cavalry Corps Trans-Mississippi Army.

8 September 1864: Major-General Sterling Price assumed command of the Army of Missouri.

3 December 1864: Brigadier-General John Bullock Clark assumed temporary command of the Army of Missouri, succeeding Major-General Sterling Price.

3 December 1864: Cavalry Corps Trans-Mississippi was established in the Trans-Mississippi Army.

3 December 1864: Major-General Sterling Price resumed command of Cavalry Corps Trans-Mississippi.

12 December 1864: The Army of Missouri was discontinued, and its remaining forces returned to Cavalry Corps Trans-Mississippi.

12 March 1865: Cavalry Corps Trans-Mississippi was discontinued.

Reserve Corps Trans-Mississippi

10 September 1864-26 May 1865

Jerome Bonaparte Robertson 10 September 1864-12 September 1864

Thomas Pleasant Dockery 12 September 1864-27 March 1865

Elkanah Brackin Greer 27 March 1865-26 May 1865

10 September 1864: Reserve Corps Trans-Mississippi was established in the Trans-Mississippi Army from the Reserve Forces of Texas.

10 September 1864: Brigadier-General Jerome Bonaparte Robertson assumed command of Reserve Corps Trans-Mississippi.

12 September 1864: Brigadier-General Thomas Pleasant Dockery assumed command of Reserve Corps Trans-Mississippi, succeeding Brigadier-General Jerome Bonaparte Robertson.

27 March 1865: Brigadier-General Elkanah Brackin Greer assumed command of Reserve Corps Trans-Mississippi, succeeding Brigadier-General Thomas Pleasant Dockery.

26 May 1865: Reserve Corps Trans-Mississippi surrendered.

Reserve Forces

Reserve Forces of Texas

24 June 1864-10 September 1864

Jerome Bonaparte Robertson 24 June 1864-10 September 1864

24 June 1864: Reserve Forces of Texas was established.

24 June 1864: Brigadier-General Jerome Bonaparte Robertson assumed command of the Reserve Forces of Texas.

10 September 1864: Reserve Forces of Texas was discontinued, and activated as the Reserve Corps Trans-Mississippi.

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