The 76th New York Infantry was organized at Cortland and Albany, New York, beginning September 2, 1861, and mustered in for three years service on January 16, 1862, under the command of Colonel Nelson W. Green.

The regiment was attached to 3rd Brigade, Casey's Division, Army of the Potomac, to March 1862.

Wadsworth's Command, Military District of Washington, to May 1862.

Doubleday's Brigade, Department of the Rappahannock, to June 1862.

2nd Brigade, 1st Division, III Corps, Army of Virginia, to September 1862.

2nd Brigade, 1st Division, I Corps, Army of the Potomac, to January 1864.

Pope's Campaign in northern Virginia August 16-September 2.

Operations at Pollock's Mill Creek April 29-May 2.

Pursuit of Lee to Manassas Gap, Va., July 5–24.

Boydton Plank Road, Hatcher's Run, October 27–28.