The Civil War in the East

21st New York Cavalry Regiment


The 21st New York Cavalry Regiment lost 3 officers and 63 enlisted men killed and mortally wounded and 1 officer and 76 enlisted men to disease during the Civil War.




Organized at Troy, N.Y.

August 28

Companies A, B, C & D mustered in

September 1

Company E mustered in

September 4

Companies A, B, C, D & E left State for Washington, D.C. and duty at Camp Stoneman, Defenses of Washington, D. C, attached to 22nd Army Corps, Dept. of Washington, D.C.

September 18

Company F mustered in

September 19

Company F left State for Washington, D.C.

October 14

Company G mustered in

October 15

Company H mustered in

October 16

Company I mustered in

October 19

Companies G, H and I left State for Washington D.C.


Company K mustered in and left State for Washington D.C.


Company L mustered in



Company M mustered in. Regiment attached to Cavalry Brigade, 1st Division, Army of West Virginia

January 4

Attempt to capture Lieutenant Washington by Company H. Company ambushed near Smithfield, Va.

January 22

Berryville Ford

January 23

Newtown and Woodstock

January 27-February 7

Operations in Hampshire and Hardy Counties, W. Va.


Companies L & M left State for Washington D.C.

February 2

Mechanicsburg Gap

February 4


February 6-7

Moved to Harper's Ferry, thence to Halltown, Va., Charlestown

February 14

Near Smithfield

February 20


April 10

Near Kablestown

April 24

Near Middletown (Detachment)

April 30-May 16

Sigel's Expedition from Martinsburg to New Market. Attached to 1st Brigade, 1st Cavalry Division, Army of West Virginia

May 10

Brock's Gap

May 15

Battle of New Market

May 21, 29 & 30 & June 3


May 26-July 1

Hunter's Raid on Lynchburg

June 5


June 6

Occupation of Staunton

June 14


June 16

Otter Creek

June 17

Diamond Hill

June 17-18


June 19


June 21

Catawba Mountains

June 21-22


June 27

Bushy Ridge, Charlestown

July 1


July 2

Bunker Hill

July 3


July 4

Pleasant Valley

July 7

Solomon's Gap

July 7


July 11

Frederick City

July 15-16

Near Hillsboro

July 16

Purcellsville and near Wood's Grove

July 17-18

Snicker's Gap and Snicker's Ferry

July 19

Ashby's Gap and Berry's Ford

July 20


July 20

Stevenson's Depot

July 23

Near Kernstown

July 24

Kernstown, Winchester

July 25

Bunker Hill and Martinsburg


Attached to 2nd Brigade, 1st Cavalry Division, Army of West Virginia

August 21-22

Near Charlestown

August 24

Falling Waters


Duty at Remount Camp, Cumberland, Md., Dept. of West Virginia

October 25-26



Attached to 1st Brigade, 2nd Division, Cavalry Corps, Army of the Shenandoah, Middle Military Division

November 12


November 22

Stony Creek, Hawkinsville, and Rude's Hill, near Front Royal

November 24

Near Kernstown

November 29

Near Winchester

December 4

Near Millwood

December 6

White Post

December 19-28

Raid on Gordonsville

December 21

Liberty Mills

December 22-23


December 26


December 27

Ashby's Gap


January 19

Near Paris

February 18-19

Expedition from Winchester into Loudoun County

February 19

Ashby's Gap


Attached to Tibbitt's Brigade, District of Harper's Ferry, Dept. of West Virginia

March 22

White Post

April 9

Near Berryville


Duty at Washington, D.C. Attached to 22nd Army Corps, Dept. of Washington


Duty at Fort Leavenworth, Kansas attached to the Dept. of Missouri


At Denver, Colo.


June 23

Company B mustered out at Denver, Colo.

June 26

Company F mustered out

June 29

Company G mustered out

July 3

Company C mustered out

July 5

Company E mustered out

July 7

Company D mustered out

August 31

Company A mustered out at Fort Leavenworth, Kansas

About the Author • ©2015 Steve Hawks