The Civil War in the East

21st Massachusetts Infantry Regiment


The 21st Massachusetts Infantry Regiment lost 11 officers and 148 enlisted men killed and mortally wounded and 2 officers and 89 enlisted men to disease during the Civil War.


The regiment is honored by a monument at Antietam near Burnside's Bridge.


July 19 -
August 19

Organized at Worcester

August 23-25

Moved to Baltimore, Md.,

August 29

To Annapolis, Md. and duty there


January 6

Attached to Reno's 2nd Brigade, Burnside's Expeditionary Corps

January 6-
February 7

Burnside's Expedition to Hatteras Inlet

February 8

Battle of Roanoke Island

Lt. Colonel Maggi commanding, the regiment lost 5 enlisted men killed and 2 officers and 37 enlisted men wounded

February 9 -
March 11

At Roanoke Island

March 11-13

Moved to New Berne

March 14

Battle of New Berne


Attached to 2nd Brigade, 2nd Division, Dept. of North Carolina

April 17-19

Expedition to Elizabeth City

April 19

Battle of Camden, South Mills

April 20 - July 6

Duty at New Berne

May 17

Expedition to Pollocksville to relief of 2nd Maryland


Assigned to 2nd Brigade, 2nd Division, 9th Army Corps, Army of the Potomac

July 6-9

Moved to Newport News, Va.

August 2-4

To Fredericksburg

August 12-15

March to relief of Gen. Pope

August 16 -
September 2

Pope's Campaign in Northern Virginia

August 29

Battle of Groveton

August 30

Battle of Bull Run

September 1

Battle of Chantilly


Maryland Campaign

September 14

Battle of South Mountain

September 16-17

Battle of Antietam

Commanded by Colonel William S. Clark


From the monument:

The following Comrades were killed near this bridge:
2nd Lieut. Henry C. Holbrook

Co. D  Priv. Wm. B. Boynton
  "     "     "     Amos S. Eastman
Co. E  Corp. Henry K. Buss
  "    "   Priv. Geo. T. Bigelow
Co. G  Corp. Jas. S. Stratton
  "    "   Priv. Daniel Daley
  "     I  Priv. Chas. Leonard
Co. K 1st Sergt. Geo. W. Davis
  "    "   Priv. Chas. S. Brigham
and 35 other wounded

September 17 - October 27

At Pleasant Valley, Md.

October 27-
November 17

Movement to Falmouth, Va.

November 15

Warrenton, Sulphur Springs

December 12-15

Battle of Fredericksburg


January 20-24

"Mud March"

January 25

At Falmouth

February 19

Moved to Newport News, Va., and duty there

March 26-April 1

Moved to Covington, Ky.


Attached to 2nd Brigade, 2nd Division, 9th Army Corps, Dept. of the Ohio

April 1-5

At Paris, Ky.

April 6

At Mt. Sterling


Unassigned, 1st Division, 23rd Army Corps, Dept. of the Ohio,
then 1st Brigade, 1st Division, 9th Army Corps

July 6

At Camp Nelson

September 12-20

March to Knoxville


Attached to 1st Brigade, 2nd Division, 9th Army Corps, Dept. of the Ohio

October 22-
November 4

Operations in East Tennessee

November 4-December 23

Knoxville Campaign

November 17-
December 4

Siege of Knoxville

December 16

Campbell's Station

December 5-29

Pursuit of Longstreet

December 29



January to March

Veterans absent on furlough


Moved to Annapolis, Md. and attached to 2nd Brigade, 1st Division, 9th Army Corps, Army of the Potomac


Campaign from the Rapidan to the James

May 5-7

Battle of the Wilderness

May 12-21

Battle of Spottsylvania Court House

May 10

Ny River

May 12

Assault on the Salient

May 23-26

North Anna River

May 24

Ox Ford

May 26-28

Line of the Pamunkey

May 28-31


June 1-12

Battle of Cold Harbor

June 1-3

Bethesda Church

June 16-18

Assault on Petersburg

June 16-
October 21

Siege of Petersburg

July 30

Mine Explosion, Petersburg

August 18

Non-Veterans left front

August 30

Non-Veterans mustered out

August 18-21

Weldon Railroad


Attached to 2nd Brigade, 1st Division, 9th Army Corps

September 29-
October 2

Poplar Springs Church, Peeble's Farm

October 21

Veterans and Recruits transferred to 36th Massachusetts Infantry

About the Author • ©2015 Steve Hawks