The Civil War in the East

120th New York Infantry Regiment "Ulster Regiment" "Washington Guard"

The regiment lost 11 officers and 140 enlisted men killed and mortally wounded and 3 officers and 179 enlisted men to disease during the Civil War. It is honored by a monument at Gettysburg.



August 22

Organized at Kingston, N.Y., and mustered in under Colonel George H. Sharpe, Lieutenant Colonel Cornelius D. Westbrook and Major John R. Tappen

August 24

Left State for Washington, D.C.; Attached to Whipple's Brigade, Defenses of Washington, D.C.


Attached to 1st Brigade, 2nd Division, 3rd Army Corps, Army of the Potomac (Daniel Sickles' Excelsior Brigade)


At Fairfax Station, Va.

November 10-12

Operations on Orange & Alexandria Railroad


Attached to 2nd Brigade, 2nd Division, 3rd Army Corps


Rappahannock Campaign

December 12-15

Battle of Fredericksburg, Va.



At Falmouth

January 20-24

"Mud March"

February 5-7

Operations at Rappahannock Bridge and Grove Church

April 27-May 6

Chancellorsville Campaign

May 1-5

Battle of Chancellorsville

The regiment lost 4 killed, 49 wounded and 13 missing

June 11-July 24

Gettysburg Campaign

July 1-3

Battle of Gettysburg

The regiment was commanded by Lieutenant Colonel Cornelius D. Westbrook until he was wounded on July 2. Major John R. Tappen then took command.


From the monument: "held this part of the line on the second day of July, 1863. Present for duty,
30 officers, 397 men, total 427. Casualties, from the war department, Killed in battle, 8 officers, 25 men, Wounded, 10 officers, 144 men, Missing 17, Total 204.
On July 3rd, supported the left centre of the Army."

July 5-24

Pursuit of Lee to Manassas Gap, Va.

July 23

Wapping Heights


Duty on line of the Rappahannock and Rapidan

September 13-17

Advance from the Rappahannock to the Rapidan

October 8-22

Bristoe Campaign

October 8, 9 and 10

James City

October 10

Russell's Ford, Robertson's River, and Bethesda Church

November 7-8

Advance to line of the Rappahannock

November 7

Kelly's Ford

November 26-December 2

Mine Run Campaign

November 27

Payne's Farm

November 28-30

Mine Run


Duty near Brandy Station


February 6-7

Demonstration on the Rapidan

February 27

Lieutenant Colonel Westbrook discharged due to his Gettysburg wounds. Major Tappen promoted to lieutenant colonel.


Attached to 2nd Brigade, 4th Division, 2nd Army Corps

May 3-June 15

Campaign from the Rapidan to the James. attached to 4th Brigade, 3rd Division, 2nd Army Corps

May 5-7

Battle of the Wilderness

The regiment lost 5 killed, 48 wounded and 8 missing

May 8

Laurel Hill

May 8-12


May 12-21

Spottsylvania Court House

May 12

Assault on the Salient or "Bloody Angle"

May 19

Harris Farm or Fredericksburg Road

May 23-26

North Anna River

May 26-28

On line of the Pamunkey

May 28-31


June 1-12

Cold Harbor

June 16-18

Before Petersburg

June 16

Siege of Petersburg

June 22-23

Jerusalem Plank Road, Weldon Railroad

June 24

Captain Abram L. Lockwood of Company A promoted to major


Attached to 3rd Brigade, 3rd Division, 2nd Army Corps

July 27-29

Demonstration north of the James

July 27-28

Deep Bottom

July 30

Mine Explosion, Petersburg (Reserve)

August 13-20

Demonstration north of the James

August 14-18

Strawberry Plains, Deep Bottom

September 29-October 2

Poplar Springs Church

October 27-28

Boydton Plank Road, Hatcher's Run

The regiment lost 8 killed, 30 wounded and 21 missing

November 5

Front of Forts Hascall and Morton

December 9-10

Reconnaissance to Hatcher's Run

December 3

Lieutenant Colonel Tappen mustered out

December 20

Major Lockwood promoted to lietenant colonel

December 26

Captain Walter Scott of Company G promoted to major


February 5-7

Dabney's Mills, Hatcher's Run

The regiment lost 6 killed, 32 wounded and 46 missing

March 25

Watkins' House

March 28-April 9

Appomattox Campaign

March 29-31

Boydton and White Oak Roads

April 2

Fall of Petersburg

First Lieutenant William Plimley of Company F earned the Medal of Honor "while acting as aide to a general officer, voluntarily accompanied a regiment in an assault on the enemy's works and acted as leader of the movement which resulted in the rout of the enemy and the capture of a large number of prisoners."

April 3-9

Pursuit of Lee

April 6

Sailor's Creek

April 7

High Bridge, Farmville

April 9

Appomattox Court House. Surrender of Lee and his army.


At Burkesville

May 2-12

Moved to Washington, D.C.

May 23

Grand Review

June 3

Mustered out under Lieutenant Colonel Lockwood. Veterans and Recruits transferred to 73rd New York Infantry.

About the Author • ©2015 Steve Hawks