Army of the Potomac
The battery was attached to Artillery Reserve, Army of the Potomac, to May 1862. Artillery, 2nd Division, V Corps, Army of the Potomac, to May 1863. Artillery Brigade, V Corps, to July 1863. Camp Barry, Washington, D.C., XXII Corps, to November 1863. Consolidated with 5th U.S. Artillery, Battery C November 1863. Artillery Brigade, II Corps, Army of the Potomac, to March 1865. Artillery Reserve, Army of the Potomac, to June 1865. Department of Washington to August 1865.