Fort Stevens Union order of battle

The following Union Army units and commanders fought in the Battle of Fort Stevens of the American Civil War on July 11–12, 1864. The Confederate order of battle is listed separately.
Defenses of the Potomac River & Washington.
MG Alexander McDowell McCook
VI Corps.
MG Horatio G. Wright
XIX Corps (Detachment).
MG Quincy A. Gillmore
XXII Corps and Department of Washington.
MG Christopher C. Augur
Front Line Commanders.
In addition to their own commands these officers supervised a section of Washington's fortifications during the battle.