Organized at Concord and mustered in August 23, 1861. Moved to Camp Scott, Long Island, N.Y., September 3, thence to Washington, D.C., September 18, and to Annapolis, Md., October 4. Attached to Viele's Brigade, Sherman's South Carolina Expeditionary Corps, to April, 1862. 3rd Brigade, 1st Division, Dept. of the South, to July, 1862. District of Hilton Head, S.C., 10th Corps, Dept. of the South, to April, 1863. Guss' Brigade, Seabrook Island, S.C., 10th Corps, to June, 1863. St. Helena Island. S.C., June, 1863. 2nd Brigade, Folly Island, S.C., 10th Corps, to July, 1863. 2nd Brigade, 2nd Division, Morris Island, S.C., 10th Corps, to August, 1863. 1st Brigade, Morris Island, S.C., 10th Corps, to January, 1864. Light Brigade, District of Florida. Dept. of the South, to April, 1864. 3rd Brigade, 1st Division, 10th Corps, Army of the James, Dept. of Virginia and North Carolina, May, 1864. 2nd Brigade, 1st Division, 10th Corps, to December, 1864. 2nd Brigade, 1st Division, 24th Corps, to March, 1865. 2nd Brigade, 1st Division, 10th Corps, Dept. of North Carolina, to April, 1865. Abbott's Detached Brigade, 10th Corps, to July, 1865.

SERVICE.--Expedition to Port Royal, S.C., October 21-November 7, 1861. Capture of Forts Walker and Beauregard, Port Royal Harbor, S.C., November 7. Duty at Hilton Head, S.C., until April, 1862. Affair Hunting Island, March, 1862. Reconnaissance up Savannah River to Elba Island March 7-11. Expedition to Bluffton March 20-24. Occupation of Edisto Island April 5. Affair at Watts' Court April 10. Reconnaissance of Seabrook Island April 14. Advance on Jehossie Island April 17. Skirmish Edisto Island April 18. Duty at Edisto Island until June 1. Operations on James Island June 1-28. Picket Affair June 8. Battle of Secessionville June 16. Evacuation of James Island and movement to Hilton Head June 28-July 7. Duty at Hilton Head until April, 1863. Affair at Pinckney Island August 21, 1862. Expedition up Broad River to Pocotaligo October 21-23. Action at Caston's and Frampton's Plantations, Pocotaligo, October 22. Movements against Charleston February 16-April 9, 1863. Moved to Seabrook Island April 23, thence to Folly Island, S.C., July 3. Assault on and capture of water batteries on Morris Island July 10. Assaults on Fort Wagner, Morris Island, July 11 and 18. Siege operations on Morris Island against Forts Wagner and Gregg and against Fort Sumter and Charleston until April 1, 1864. Occupation of Forts Wagner and Gregg September 7, 1863. Ordered to Florida April 1, 1864, and Regiment mounted. Palatka April 3. Moved to Gloucester Point, Va., April 25-29. (Veterans absent on furlough March and April, rejoining at Gloucester Point, Va.) Butler's operations on south side of James River and against Petersburg and Richmond May 4-28. Capture of City Point and Bermuda Hundred May 5. Chester Station May 6-7. Swift Creek May 9-10. Chester Station May 10. Operations against Fort Darling May 12-16. Drury's Bluff May 14-16. Bermuda Hundred May 16-31. Action at Bermuda Hundred June 2 and 14. Petersburg June 9. Port Walthal June 16-17. Siege operations against Petersburg and Richmond June 16, 1864, to January 7, 1865. Deep Bottom July 21, 1864. Demonstration north of the James August 13-20. Strawberry Plains August 14-18. Duty in trenches before Petersburg August 24-September 27. Chaffin's Farm September 28-30. Charles City Cross Roads October 1. Darbytown and New Market Roads October 7. Darbytown Road October 13. Fair Oaks October 27-28. Front of Richmond October 31-November 2. Detached for duty at New York during Presidential Election November 2-17. Duty in front of Richmond November 17 to January 3, 1865. 2nd Expedition to Fort Fisher, N. C., January 3-15. Assault and capture of Fort Fisher January 15. Half Moon Battery January 19. Sugar Loaf Battery February 11. Fort Anderson February 18. Capture of Wilmington February 22. Smith's Creek and North East Ferry February 22. Duty at Wilmington until June 3, and at Goldsboro until July. (Non-Veterans mustered out August 23, 1864.) Mustered out July 25, 1865.