Fort Barrancas mostly by enslaved African-American workers. January 8, 1861, more than three months before the American Civil War officially started at Fort Sumter, South Carolina, a company of 50 U.S. Army soldiers stationed at Fort Barrancas, under the command of John H. Winder fired upon a militia. This militia was Florida state troops under Colonel William Henry Chase demanding that the U.S. troops surrender the fort. Lieutenant Adam J. Slemmer, acting commander in Winder's absence, had the troops fire shots meant to repel the militia. Lt Slemmer knew that Fort Pickens was easier to defend, so he spiked the guns at
Wilmot Gibbes de Saussure sons and three adult daughters survived their brother. Wilmot Gibbes de Saussure began his Civil War service as a colonel in the 1st South Carolina Artillery Regiment of the 4th Brigade of the South Carolina militia at the siege of Fort Sumter. His force occupied Fort Moultrie when the U.S. Army garrison withdrew to Fort Sumter on December 26, 1861. De Saussure was in command of the Morris Island batteries during the bombardment of Fort Sumter on April 12 through April 14, 1861. In August 1861, de Saussure was appointed a brigadier general in the South Carolina militia and was