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
Fort Sumter last Confederate commander, Major Thomas A. Huguenin, a graduate from The Citadel, The Military College of South Carolina, never surrendered Fort Sumter, but General William Tecumseh Sherman's advance through South Carolina finally forced the Confederates to evacuate Charleston on February 17, 1865, and abandon Fort Sumter. The Federal government formally took possession of Fort Sumter on February 22, 1865. On April 14, 1865, mere hours before President Lincoln's assassination, Anderson (now a major general) returned to Sumter with the flag he had been forced to lower after the surrender four years earlier, and raised it in triumph over the ruined