The Civil War in the East

143rd Regiment Infantry "Sullivan County Regiment"

The regiment lost 5 officers and 37 enlisted men killed and mortally wounded and 1 officer and 177 enlisted men to disease, a total of 220 during the Civil War.




Organized at Monticello, N.Y.

October 8

Mustered in under Colonel David P. De Witt, Lieutenant Colonel Horace Boughton and Major Joseph B. Taft

October 14

Left State for Washington, D.C.


Duty in the Defenses of Washington, D. C. attached to 3rd Brigade, Abercrombie's Division, Defenses of Washington, D.C.



Atached to 3rd Brigade, Abercrombie's Division, 22nd Army Corps, Dept. of Washington

March 20

The regiment lost nine men in a railroad accident

April 18

Moved to Suffolk, Va. and assigned to 2nd Brigade, 3rd Division, 7th Army Corps, Dept. of Virginia

April 20-May 4

Siege of Suffolk

April 29

Colonel DeWitt resigned due to health. Lieutenant Colonel Horace Boughton was promoted to colonel and took command of the regiment.

May 3

Providence Church Road

May 4

Siege of Suffolk raised


Assigned to 1st Brigade, 2nd Division, 4th Army Corps.

June 24-July 7

Dix's Campaign on the Peninsula

July 10

Moved to Washington, D.C. and assigned to 1st Brigade, 3rd Division, 11th Army Corps, Army of the Potomac

July 13-22

Pursuit of Lee to Berlin, Md.


Near Bristoe Station, Va.

September 24-October 3

Movement to Bridgeport, Ala. and transfer to Army of the Cumberland

October 14

Major Joseph B. Taft was promoted to lieutenant colonel

October 20

Reconnaissance from Bridgeport to Trenton (Detachment)

October 25-29

March along line of Nashville & Chattanooga Railroad to Lookout Valley, Tenn.

October 26-29

Reopening Tennessee River

October 28-29

Battle of Wauhatchie, Tenn.

The regiment lost 1man killed and 5 men wounded.

November 23-27

Chattanooga-Ringgold Campaign

November 23

Orchard Knob

November 24-25

Tunnel Hill

November 25

Missionary Ridge

Lieutenant Colonel Joseph B. Taft was killed.

November 28-December 17

March to relief of Knoxville

December - May

Duty in Lookout Valley



Assigned to 3rd Brigade, 1st Division, 20th Army Corps, Army of the Cumberland

May 1 - September 8

Atlanta Campaign

May 8-11

Demonstration on Rocky Faced Ridge

May 14-15

Battle of Resaca

The regiment lost 3 men killed or mortally wounded and 10 wounded. Sergeant Thomas D. Collins earned to Medal of Honor for capturing a Confederate flag.

May 19

Near Cassville

May 22-25

Advance on Dallas

The regiment lost 3 men killed or mortally wounded, 1 officer and 12 enlisted men wounded and 2 men missing

May 25

New, Hope Church

May 26-June 5

Battles about Dallas, New Hope Church and Allatoona Hills

The regiment lost 3 men killed and mortally wounded, 1 oficer and 12 men wounded and 2 men missing.

June 4


Two men wounded

June 10-July 2

Operations about Marietta and against Kenesaw Mountain

The regiment lost 10 men killed or mortally wounded, 2 officers and 62 enlisted men wounded and 2 enlisted men missing.

June 11-14

Pine Hill

June 15-17

Lost Mountain

June 15

Gilgal or Golgotha Church

June 17

Muddy Creek

June 19

Noyes Creek

June 22

Kolb's Farm

June 27

Assault on Kenesaw

July 4

Ruff's Station or Smyrna Camp Ground

July 5-17

Chattahoochie River

July 19-20

Peach Tree Creek

The regiment lost 2 oficers and 14 enlisted men killed or mortally wounded, and 1 officer and 31 men wounded

July 22-August 25

Siege of Atlanta

August 26-
September 2

Operations at Chattahoochie River Bridge

September 2-November 15

Occupation of Atlanta

October 26-29

Expedition from Atlanta to Tuckum's Cross Roads

November 15-December 10

March to the sea

December 9

Montieth Swamp

December 10-21

Siege of Savannah


January to April

Campaign of the Carolinas

March 16

Averysboro, N. C.

March 19-21

Battle of Bentonville

March 24

Occupation of Goldsboro

April 7-13

Advance on Raleigh

April 14

Occupation of Raleigh

April 26

Bennett's House. Surrender of Johnston and his army.

April 29-May 20

March to Washington, D.C., via Richmond, Va.

May 24

Grand Review


Duty at Washington, D.C.

July 20

Mustered out near Washington under Colonel Horace Boughton

About the Author • ©2015 Steve Hawks