Organized at Bridgeport August 28, 1862. Left State for Baltimore, Md., September 3. Attached to Defences of Baltimore, Md., 8th Corps, Middle Dept., to October, 1862. 2nd Brigade, 1st Division, 11th Army Corps, Army of the Potomac, to August, 1863. 2nd Brigade, Gordon's Division, South End Folly Island, S. C., 10th Corps, Dept. South, to February, 1864. 1st Brigade, Ames' Division, District of Florida, Dept. South, to April, 1864. District of Florida, Dept. South, to October, 1864. 4th Separate Brigade, District Florida, Dept. South, to July, 1865.
Duty at Fort Marshall, Defences of Baltimore, till October, 1862. At Tennallytown, building Fort Kearney, October 15-November 3. March to Thoroughfare Gap and Chantilly November 3-12. Duty at Brook's Station, Va., December, 1862, to April, 1863. "Mud March" January 20-24, 1863. Chancellorsville Campaign April 27-May 6. Battle of Chancellorsville May 1-5. Gettysburg (Pa.) Campaign June 11-July 24. Battle of Gettysburg July 1-3. Hagerstown, Md., July 11-13. Moved to Folly Island, S.C., August 1-12. Siege operations on Morris Island, S.C., against Forts Wagner and Gregg, and against Fort Sumter and Charleston August 15-September 7. Capture of Forts Wagner and Gregg September 7. Moved to Folly Island, S. C., and duty there, operating against Charleston, S.C., till February, 1864. Expedition to John's and James Islands February 6-14. Ordered to Jacksonville, Fla., February 22, and duty there till April 15. Moved to St. Augustine, Fla., April 15-17, and duty there till June, 1865. Action at Welaka May 19, 1864 (Detachment). Expedition to Camp Milton May 31-June 3. Action at Milton June 2. Whitesville July 24. Companies "A," "C," "I" and "K" at Picolata, St. Johns River, July 18, 1864, to February, 1865. Companies "A," "E," "F," and "H" moved to Jacksonville July 22, 1864, and participated in Expedition to Baldwin July 23-28. Expedition to Enterprise September 28, 1864. Companies "C," "F" and "H" at Lake City, Fla., and "G" and "I" at Tallahatchie May and June, 1865. Regiment moved from St. Augustine to Jacksonville June 9, and duty there till July 7. Mustered out July 19, 1865.
Regiment lost during service 5 Officers and 48 Enlisted men killed and mortally wounded and 1 Officer and 74 Enlisted men by disease. Total 128.