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
Battle of Fort Sumter trajectories high enough to seriously threaten Fort Moultrie. Moreover, although the Federals had moved as many of their supplies to Fort Sumter as they could manage, the fort was quite low on ammunition, and was nearly out at the end of the 34-hour bombardment. A more immediate problem was the scarcity of cloth gunpowder cartridges or bags; only 700 were available at the beginning of the battle and workmen sewed frantically to create more, in some cases using socks from Anderson's personal wardrobe. Because of the shortages, Anderson reduced his firing to only six guns: two aimed at Cummings Point,