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 Washington Park their services to their home state, Virginia. On January 5, 1861, Ordnance Sergeant Joseph Cameron asked for troops to be sent to Fort Washington. The next day, Captain Algernon S. Taylor and 40 U.S. Marines arrived from the Navy Yard to hold the fort until trained artillery units could be sent. Taylor feared that the 40 Marines were not enough and asked for reinforcements. On January 26, 1861, a company of U.S. Army recruits relieved the Marines. On April 15, the day after Fort Sumter surrendered in Charleston harbor, the War Department sent Company D of the 1st U.S. Artillery