The 2nd Maine Cavalry was organized in Augusta, Maine November 30, 1863, through January 2, 1864, and mustered in for three years' service under the command of Colonel Ephraim W. Woodman.

The regiment was attached to District of La Fourche, Department of the Gulf, to July 1864.

2nd Brigade, District of West Florida, Department of the Gulf, to February 1865.

(Companies A, D, and G detached and moved to Alexandria, Louisiana, April 16–21.

Moved to Algiers, then to Pensacola, Florida, July 27-August 11, and duty there until March 1865.

Expedition from Barrancas to Pine Barren Creek November 16–17.

(Dismounted men remained at Barrancas, Fla.) Near Evergreen, Alabama March 24.

Duty in Alabama with XVI Corps until August, and in western and middle Florida by detachments to December.