The order for an assault that was never made
Special Orders No. 513, issued late in the evening from Morris Island: “Fort Wagner will be assaulted at 9 a.m. to-morrow, the 7th instant, by troops to be designated by Brigadier-General Terry.” Overnight the Confederates rowed the whole garrison away, and the assault went in against an empty fort.
Official Records, Series I, Vol. 28, Pt. 1