The 13th Connecticut Infantry Regiment was organized at New Haven, Connecticut, beginning November 25, 1861, and mustered in for a three-year enlistment on January 7, 1862, under the command of Colonel Henry Warner Birge.

3rd Brigade, 3rd Division, XIX Corps, Department of the Gulf, January 1863.

1st Brigade, 1st Division, X Corps, Department of North Carolina, to April 1865.

The 13th Connecticut Infantry mustered out of service April 25, 1866, at Fort Pulaski, Georgia.

Left Connecticut for Ship Island, Mississippi, March 17, 1862, arriving there April 13.

Operations against Forts St. Phillip and Jackson, Mississippi River, April 15–28, 1862.

Expedition to Pass Manchac and Ponchatoula September 13–15 (detachment).

Porter's and McWilliams' Plantations at Indian Bend, April 13.

Moved to Donaldsonville July 11, thence to Thibodeauxville and duty there until March 1864.

Monett's Bluff, Cane River Crossing April 28.

Duty at Savannah, Augusta, Athens, Gainesville, and District of Allatoona, Georgia, until April 1866.