United States Regiments & Batteries > District of Columbia

June Attached to Army of Virginia, 3rd┬áCorps, Bayard’s Cavalry Brigade
September Transferred to Army of the Potomac, Cavalry Corps, 2nd Division, 3rd Brigade
December 13
Battle of Fredericksburg

Commanded by Captain William H. Orton

June 9
Battle of Brandy Station
August Transferred to Cavalry Corps, 2nd Division, 2nd Brigade
September 13-17 Advance from the Rappahannock to the Rapidan River
October 9-22 Brisote Campaign
December Transferred to to Middle Dept, 8th Corps. Became Company M, 1st District of Columbia Cavalry