Organized at New York City and mustered in April 22, 1861. Left State for Fortress Monroe, Va., May 20, 1861, and duty there till July 3. Attached to Fort Monroe, Camp Hamilton and Newport News, Va., Dept. of Virginia, May, 1861, to May, 1862. 1st Brigade, 1st Division, Dept, of Virginia, to June, 1862. 3rd Brigade, 3rd Division, 3rd Army Corps, Army of the Potomac, to August, 1862. 2nd Brigade, 1st Division, 3rd Army Corps, to September, 1862. 3rd Brigade, 1st Division, 3rd Army Corps, to May, 1863.