4th Connecticut Infantry Regiment
|4th Connecticut Volunteer Infantry|
|Active||May 21, 1861 to January 2, 1862|
The regiment was attached to Abercrombie's 6th Brigade, 2nd Division, Department of Pennsylvania, to August 1861. 2nd Brigade, Banks' Division, Army of the Potomac, to December 1861. Defenses of Washington to January 1862.
The 4th Connecticut Infantry ceased to exist when its designation was changed to 1st Connecticut Heavy Artillery on January 2, 1862.
Left Connecticut for Washington, D.C., June 10. Duty at Chambersburg, Pennsylvania, and at Hagerstown, Maryland, until July 4, 1861, and at Williamsport until August 16. At Frederick, Md., until September 5. Moved to Darnestown September 5, then to Fort Richardson. Service in the Defenses of Washington, D.C., and duty there until January 1862.
- Connecticut in the American Civil War
- List of Connecticut Civil War units
- 1st Connecticut Heavy Artillery
- Andrews, Elisha Benjamin. A Private's Reminiscences of the First Year of the War (Providence, RI: Rhode Island Soldiers and Sailors Historical Society), 1886.
- Connecticut Adjutant-General's Office. Catalogue of the 1st, 2d, 3d, 4th, and 5th Regiments, Connecticut Volunteers, 1861 (Hartford, CT: Press of Case, Lockwood & Co.), 1861.
- Dyer, Frederick H. A Compendium of the War of the Rebellion (Des Moines, IA: Dyer Pub. Co.), 1908.
- Hartford City Guard. The City Guard Register: Being a Complete Roster of the Hartford City Guard Since Its Organization in 1861 (Hartford, CT: The Guard), 1880.