January 20 1861 Sunday
Louisiana. An incomplete and unnamed US Army fort located on Ship Island at the mouth of the Mississippi River was seized by Mississippi State troops. Ship Island was a key location for naval operations in the Gulf of Mexico and the lower Mississippi River.
Mississippi passed legislation in 1858 to give jurisdiction over the island to the United States government. The US Congress was constructing modern masonry fortifications at strategic locations along the Atlantic and Gulf coasts, including Ship Island. Construction of the fort began in 1859 and continued up to the outbreak of war. The Confederate captors later named the uncompleted structure Fort Twiggs after David Emanuel Twiggs who was dismissed from the US Army after joining the Confederacy on 1 March 1861. After Union reoccupation, the fort was renamed Fort Massachusetts in 1862 in honor of the Union warship which seized the abandoned outpost.
Union Organisation
Commander in Chief: President James Buchanan
Vice-President: John Cabell Breckinridge
Secretary of War: Joseph Holt
Secretary of the Navy: Isaac Toucey
African Squadron: William Inman
Brazil Squadron: Joshua Ratoon Sands
East Indian (Asiatic) Squadron: Cornelius Kinchiloe Stribling
European Squadron: vacant
Home Squadron: Garrett J Prendergast
Mediterranean Squadron: Charles H Bell
Pacific Squadron: John Berrien Montgomery
General–in-Chief: Winfield Scott
Department of the Pacific: Albert Sidney Johnston
- District of Oregon: George Wright
Department of the East: John Ellis Wool
Department of New Mexico: Thomas Turner Fauntleroy
Department of Texas: David Emanuel Twiggs
Department of Utah: Philip St George Cooke
Department of the West: William Selby Harney
Union Generals
Major-General USA
Winfield Scott
Brigadier-General USA
John Ellis Wool
David Emanuel Twiggs
William Selby Harney
Brigadier-General USA (Staff)
Joseph Eggleston Johnston
