The regiment was attached to Williams' Brigade, Burnside's Expeditionary Corps, to April 1862.
2nd Brigade, 3rd Division, IX Corps, Army of the Potomac, to April 1863.
2nd Brigade, 2nd Division, VII Corps, Department of Virginia, to July 1863.
2nd Brigade, 2nd Division, XVIII Corps, Department of Virginia and North Carolina, to October 1864.
1st Brigade, 3rd Division, XXIV Corps, Department of Virginia, to July 1865.
Left Connecticut for Annapolis, Maryland, December 16, and duty there until January 6, 1862.
Burnside's expedition to Hatteras Inlet and Roanoke Island, North Carolina, January 7–February 8, 1862.
Moved to Newport News, Virginia, February 6–9, then to Suffolk March 13.
Expedition from White House to South Anna River July 1–7.
Butler's operations on south side of the James River and against Petersburg and Richmond May 4–28.
On Bermuda Hundred front August 25 to December, and on north side of the James River before Richmond until April 1865.