Organized at Troy, N.Y., and mustered in June 1, 1861. Left State for Washington, D.C., June 28, 1861. Attached to Defenses of Washington to August, 1861. Keyes' Brigade, Division of the Potomac, to October, 1861. Keyes' Brigade, McDowell's Division, Army of the Potomac, to March, 1862. Augur's Brigade, King's 3rd Division, 1st Army Corps, Army of the Potomac, to April, 1862. 1st Brigade, King's Division, Dept. of the Rappahannock, to June, 1862. 1st Brigade, 1st Division, 3rd Corps. Pope's Army of Northern Virginia, to September, 1862. 1st Brigade, 1st Division, 1st Army Corps, Army of the Potomac, to June, 1863.
SERVICE.--Duty in the Defenses of Washington, D.C., until March, 1862. Doolan's Farm November 16, 1861 (Detachment). Advance on Manassas, Va., March 10-16, 1862. McDowell's Advance on Falmouth, Va., April 9-19. Duty at Fredericksburg, Va., until May 25. McDowell's advance on Richmond May 25-29. Operations against Jackson June 1-21. At Falmouth until August. Pope's Campaign in Northern Virginia August 16-September 2. Fords of the Rappahannock August 20-23. Thoroughfare Gap August 28. Battles of Groveton August 29; Bull Run August 30. Maryland Campaign September 6-22. Battles of South Mountain September 14; Antietam September 16-17. Duty in Maryland until October 29. Movement to Falmouth, Va., October 29-November 19. Battle of Fredericksburg, Va., December 12-15. "Mud March" January 20-34, 1863. At Falmouth until April 27. Chancellorsville Campaign April 27-May 6. Operations at Pollock's Mill Creek April 29-May 2. Battle of Chancellorsville May 2-5. Three years' men transferred to 76th Regiment New York Infantry May 24. Mustered out June 18, 1863, expiration of term.
Regiment lost during service 6 Officers and 72 Enlisted men killed and mortally wounded and 3 Officers and 31 Enlisted men by disease. Total 111.