Mustered in: July 16 to August 31,1861
Mustered out: June 27,1865
This regiment was organized in New York city by Col. Carl Schurz, succeeded by Col. Andrew T. McReynolds (June 15, 1861), under special authority from the President, dated May 1, 1861, and was mustered into the United States service between July 16 and August 31, 1861, for a service of three years.
Companies A, B, D, E, G, H, I, L and M, were recruited principally in New York city, four of them being composed of Germans, Hungarians and Poles; Company C, Boyd's Company C, Cavalry, Pa. Vols., at Philadelphia; F, at Syracuse; and K, Michigan Company, at Grand Rapids, Mich.
The regiment left the State by detachments; Company C, the first in the field, leaving July 22, 1861; by September 10, 1861, the regiment was all in the field; it served at and near Washington, D. C., from July, 1861; in Franklin's and Heintzelman's Divisions, Army of Potomac, from October 4, 1861; in 1st Division, 1st Corps, Army of Potomac, from March 24, 1862; with the 6th Corps, Army of Potomac, from May, 1862; in 1st Cavalry Brigade, Army of Potomac, from July 8, 1862; in 4th Brigade, Cavalry Division, Army of Potomac, from September, 1862; in Averill's Cavalry Division, 8th Corps, Middle Department, from October, 1862; with the forces for the defense of the Upper Potomac, 8th Corps, Middle Department, from November, 1862; in the 3d Brigade, 2d Division, 8th Corps, from March, 1863; in the Department of the Susquehanna, from June, 1863; in the Department of W. Va., from August, 1863; in the 1st Brigade, 1st Division, Cavalry, Army of W. Va., from November, 1863; in the 2d Brigade, 2d Division, Army of W. Va., from August 27, 1864; in the Army of the Shenandoah, from October, 1864, and in the 3d Brigade, 3d Division, Cavalry, Army of the Shenandoah, from December, 1864, and with the Army of the Potomac, from March, 1865.
At the expiration of its term of service, those entitled thereto were discharged, and the regiment, composed of veterans and recruits, continued in the service until June 27, 1865, when, commanded by Col. Alonzo W. Adams, it was mustered out at Alexandria, Va.
During its service the regiment lost by death, killed in action, 3 officers, 22 enlisted men; died of wounds received in action, 2 officers, 21 enlisted men; died of disease and other causes, 2 officers, 118 enlisted men; total, 7 officers, and 161 enlisted men; aggregate, 168; of whom 44 enlisted men died in the hands of the enemy.