May Organized and on duty at Fort Hamilton, N.Y. Harbor
June Ordered to Dept. of the Susquehanna, and duty in Pennsylvania
April Ordered to Washington, and attached to 3rd Brigade, Artillery Reserve, Army Potomac
May 4-June 12 Rapidan Campaign. Attached to Artillery Brigade, 6th Army Corps, Army Potomac
May 28-31 Totopotomoy
June 1-12 Cold Harbor
June 17 Beginning of Siege of Petersburg
June 22 Jerusalem Plank Road
July Attached to Artillery Reserve, Army Potomac
December Atatched to Artillery Brigade, 6th Army Corps, Army Potomac
March 25 Fort Fisher, Petersburg
March 28-April 9 Appomattox Campaign
April 2 Assaults on and fall of Petersburg
April 6 Sailor’s Creek
April 9
Appomattox Court House

Surrender of Lee and his army.

April 17-23 March to Danville and duty there
May 18-June 3 Moved to Richmond, thence to Washington, D.C.
June 8 Corps Review
June Duty in the Defenses of Washington, D.C. attached to Dept. of Washington