120th New York Infantry

== Regimental History and Service Record ==
* "Ulster Regiment"
* "Washington Guard"
Organized at Kingston, N.Y., and mustered in August 22, 1862. Left State for Washington, D.C., August 24, 1862. Attached to Whipple's Brigade, Defenses of Washington, D.C., to October, 1862. 1st Brigade, 2nd Division, 3rd Army Corps, Army of the Potomac, to December, 1862. 2nd Brigade, 2nd Division, 3rd Army Corps, to March, 1864. 2nd Brigade, 4th Division, 2nd Army Corps, to May, 1864. 4th Brigade, 3rd Division, 2nd Army Corps, to July, 1864. 3rd Brigade, 3rd Division, 2nd Army Corps, to June, 1865.
SERVICE.--Duty in the Defenses of Washington, D. C., until November, 1862. At Fairfax Station, Va., until November 25. Operations on Orange & Alexandria Railroad November 10-12. Rappahannock Campaign December, 1862, to June, 1863. Battle of Fredericksburg, Va., December 12-15, 1862. At Falmouth, Va., until April, 1863. "Mud March" January 20-24. Operations at Rappahannock Bridge and Grove Church February 5-7. 
* April 27-May 6, 1863 - The Chancellorsville Campaign
** May 1-5, 1863 - Battle of Chancellorsville, Virginia
* June 11-August 1, 1863 - The Gettysburg Campaign
** July 1-3, 1863 - Battle of Gettysburg, Pennsylvania
Pursuit of Lee to Manassas Gap, Va., July 5-24. Wapping Heights July 23. Duty on line of the Rappahannock and Rapidan until October. Advance from the Rappahannock to the Rapidan September 13-17. Bristoe Campaign October 8-22. James City October 8, 9 and 10. Russell's Ford, Robertson's River, and Bethesda Church October 10. Advance to line of the Rappahannock November 7-8. Kelly's Ford November 7. Mine Run Campaign November 26-December 2. Payne's Farm November 27. Mine Run November 28-30. Duty near Brandy Station until May, 1864.
* Demonstration on the Rapidan February 6-7.
* May 4-June 12, 1864 - The Overland Campaign
** May 5-7, 1864 - Battle of the Wilderness, Virginia
** May 8-21, 1864 - Battles of Spotsylvania Court House, Virginia
*** May 8, 1864 - Combat at Laurel Hill, VirginiaListed on unit homepage but not referenced on Dyer summary
*** May 12, 1864 - Assault on the Salient at Spotsylvania Court House, Virginia
*** May 19, 1864 - Engagement at Harris Farm, Virginia
** May 22-26, 1864 - Operations on Line of the North Anna River, Virginia
** May 26-28, 1864 - Operations on Line of the Pamunkey River, Virginia
** May 28-31, 1864 - Operations on Line of the Totopotomoy River, Virginia
** June 1-12, 1864 - Battles of Cold Harbor, Virginia
Before Petersburg June 16-18. Siege of Petersburg June 16, 1864, to April 2, 1865. Jerusalem Plank Road, Weldon Railroad, June 22-23, 1864. Demonstration north of the James July 27-29. Deep Bottom July 27-28. Mine Explosion, Petersburg, July 30 (Reserve). Demonstration north of the James August 13-20. Strawberry Plains, Deep Bottom, August 14-18. Poplar Springs Church September 29-October 2. Boydton Plank Road, Hatcher's Run, October 27-28. Front of Forts Hascall and Morton November 5. Reconnaissance to Hatcher's Run December 9-10. Dabney's Mills, Hatcher's Run, February 5-7, 1865. Watkins' House March 25. Appomattox Campaign March 28-April 9. Boydton and White Oak Roads March 29-31. Fall of Petersburg April 2. Pursuit of Lee April 3-9. Sailor's Creek April 6. High Bridge, Farmville, April 7. Appomattox Court House April 9. Surrender of Lee and his army. At Burkesville until May 2. Moved to Washington, D.C., May 2-12. Grand Review May 23. 
* June 3, 1865 - Mustered out of federal service 
** Veterans and Recruits transferred to 73rd New York Infantry.
== Regimental Roster ==
== Regiment Statistical Information ==
* Regiment lost during service 11 Officers and 140 Enlisted men killed and mortally wounded and 3 Officers and 179 Enlisted men by disease. Total 333.
== Legacy ==
== Notes ==
== Sources == 
* (Pages 827, 905, 916, 932, 933, 934, 936, 937, 938, 939, 940, 941, 1452)
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