Fifteen people row out to the Bienville
At two in the morning fifteen enslaved people came off to the USS Bienville off Charleston in a boat belonging to the Confederate quartermaster’s department, having left the city at half past nine the night before. One of them, named Gabriel, gave a careful account of the harbor defenses, down to the shell-proof port shutters going up in Fort Sumter’s casemates. It was two weeks before Robert Smalls did the same thing with a steamer.
Official Records of the Navies, Series I, Vol. 12