Organized at Readville and mustered in for three years January 2, 1864. Left State for Washington, D.C., February 5. Attached to Defenses of Washington, 22nd Army Corps, to April, 1864. Artillery, 2nd Division, 9th Army Corps, Army of the Potomac, to July, 1864. Temporarily attached to Artillery Brigade, 2nd Army Corps, May, 1864. Artillery Brigade, 9th Army Corps, to June, 1865. Temporarily attached to Artillery Brigade, 5th Army Corps, August, 1864.
SERVICE.--Duty in the Defenses of Washington, D.C., until April 9, 1864. Rapidan Campaign May-June, 1864. Battles of the Wilderness May 5-7. Spottsylvania May 8-12, Spottsylvania C. H. May 12-21. Assault on the Salient, Spottsylvania C. H., May 12. Stannard's Mills May 21. North Anna River May 23-26. Line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Bethesda Church June 1-3. Before Petersburg June 16-18. Siege of Petersburg June 16, 1864, to April 2, 1865. Mine Explosion, Petersburg, July 30, 1864. Weldon Railroad August 18-21. Poplar Springs Church, Peeble's Farm, September 29-October 2. Dabney's Mills, Hatcher's Run, February 5-7, 1865. Fort Stedman March 25. Appomattox Campaign March 28-April 9. Assault on and fall of Petersburg April 2. Pursuit of Lee to Appomattox C. H. April 3-9. Moved to Washington, D.C., April 20-27. Grand Review May 23. Mustered out June 16, 1865.
Battery lost during service 3 Enlisted men killed and mortally wounded and 12 Enlisted men by disease. Total 15.