4th Connecticut Infantry Regiment

1861
May 21	Organized at Hartford under Colonel Levi Woodhouse
June 10	Left State for Washington, D.C.
June	Attached to Abercrombie's 6th Brigade, 2nd Division, Dept. of Pennsylvania for duty at Chambersburg, Pa., and at Hagerstown, Md.
July 4	At Williamsport
August 16	At Frederick; attached to 2nd Brigade, Banks' Division, Army Potomac
September 5	Moved to Darnestown, then to Fort Richardson, Defenses of Washington
1862
January	Designation of regiment changed to 1st Connecticut Heavy Artillery January 2, 1862.