U.S. Army

Department of Washington

Colonel Joseph K. F. Mansfield

Consolidated with the Department of Northeastern Virginia on Juy 25, 1861 to create The Department of the Potomac.

6th Maine Infantry Regiment

from Maine 7/17

to Smith's Bde. Div. Potomac 8/4

to 1st Brigade, 3rd Division, Dept. N,E. Va. 7/3

7th Massachusetts Infantry Regiment

from Massachusetts 7/15

to Couch's Bde. Div. Potomac 8/4

9th Massachusetts Infantry Regiment

from Massachusetts 7/3

to Sherman's Bde. Div. Potomac 8/4

from Massachusetts 7/25

to Couch's Bde. Div. Potomac 8/4

Colonel W. A. Gorman

to 1st Brigade, 3rd Division, Dept. N,E. Va.

1st New Jersey Militia Regiment

Colonel A. J. Johnson

to 1st Brigade, 4th Division, Dept. N,E. Va.

2nd New Jersey Militia Regiment

Colonel H. M. Baker

to 1st Brigade, 4th Division, Dept. N,E. Va.

3rd New Jersey Militia Regiment

Colonel W. Napton

to 1st Brigade, 4th Division, Dept. N,E. Va.

4th New Jersey Militia Regiment

Colonel M. Miller

to 1st Brigade, 4th Division, Dept. N,E. Va.

5th New York State Militia

Colonel C. Schwarzwaelder

to Dept. Pennsylvania, 3rd Div., 8th Bde. 7/10

11th New York Infantry Regiment

Colonel N. L. Farham

to 2nd Bde., 3rd Div., Dept. N,E. Va. 7/13

12th New York Infantry Regiment

Colonel Daniel Butterfield

to Dept. Pennsylvania-3rd Div.-8th Bde. 7/6

14th New York Infantry Regiment

Colonel J. McQuade

to Sherman's Bde., Dept. Potomac 8/4

15th New York Infantry Regiment

Colonel J. M. Murphy

to McCunn's Bde. 7/20 (see below)

17th New York Infantry Regiment

Colonel H. Seymour Lansing

to Fort Ellsworth 8/4

19th New York Infantry Regiment

Colonel John S. Clarke

to Dept. Pennsylvania, 3rd Div., 8th Bde. 7/6

21st New York Infantry Regiment

Colonel William F. Rogers

to Fort Corcoran 8/4

22nd New York Infantry Regiment

Colonel Walter Phelps, Jr.

from New York via Baltimore 7/1

to Keyes' Bde. Div. Potomac 8/4

23rd New York Infantry Regiment

Colonel Henry C. Hoffman

from New York 7/8

24th New York Infantry Regiment

Colonel T. Sullivan

from New York 7/3

to Keyes' Bde. Div. Potomac 8/4

25th New York State Militia

Colonel M. K. Bryan

left for New York to muster out 8/4

25th New York Infantry Regiment

Colonel James E. Kerrigan

to McCunn's Bde. 7/21 (see below)

26th New York Infantry Regiment

Colonel William H. Christian

to McCunn's Bde. 7/21 (see below)

28th New York Infantry Regiment

Colonel Dudley Donnelly

to Dept. Pennsylvania, 3rd Div., 8th Bde. 7/11

24th New York Infantry Regiment

Colonel E. Frisby

to Couch's Bde., Dept. Potomac 8/4

33rd New York Infantry Regiment

Colonel Robert F. Taylor

from New York 7/9

to Smith's Bde. Div. Potomac 8/4

34th New York Infantry Regiment

Colonel W. La Due

from New York 7/5

to Stone's Bde. Div. Potomac 8/4

35th New York Infantry Regiment

Colonel William C. Brown

from New York 7/9

to 2nd Bde., 2nd Div., Dept. N,E. Va. 7/27

36th New York Infantry Regiment

Colonel C. H. Innes

from New York 7/14

to Couch's Bde., Dept. Potomac 8/4

37th New York Infantry Regiment

Colonel John H. McCunn

to McCunn's Bde. 7/21 (see below)

40th New York Infantry Regiment

Colonel Edward J. Riley

from New York 7/4

to Howard's Bde., Div. Potomac 8/4

42nd New York Infantry Regiment

Colonel William D. Kennedy

from New York 7/18

to Howard's Bde., Div. Potomac 8/4

83rd New York Infantry Regiment

Colonel John W. Stiles

to Dept. Pennsylvania-3rd Div.-8th Bde. 7/11

25th Pennsylvania Infantry Regiment Companes A, B, C, E, H

under individual company commanders

left for Harrisburg to muster out 7/26

26th Pennsylvania Infantry Regiment

Colonel William F. Small

to Hooker's Bde. Div. Potomac 8/4

Stone's Command

Colonel Charles P. Stone

1st New Hampshire Infantry Regiment

Colonel Mason Tappan

to Dept. Pa., 3rd Div., 7th Bde. 7/7

9th New York State Militia Regiment

Colonel John W. Stiles

17th Pennsylvania Infantry Regiment

Colonel Francis E. Patterson

25th Pennsylvania Infantry Regiment

Companies D, F, G, I and K

Colonel Henry L. Cake

District of Columbia (detatchments)

Captain Smead

United States Cavalry

Captain Magruder

4th United States Artillery Battery F

Lieutenant Alexander Piper

McCunn's Brigade

Colonel John H. McCunn

15th New York Infantry Regiment

Colonel J. M. Murphy

from unattached 7/20 (see above)

to Couch's Bde., Div. Potomac 8/4

25th New York Infantry Regiment

Colonel James E. Kerrigan

from unattached 7/21 (see above)

to Hunter's Bde., Div. Potomac 8/4

26th New York Infantry Regiment

Colonel William H. Christian

from unattached 7/21 (see above)

to Heintzelman's Bde., Div. Potomac 8/4

37th New York Infantry Regiment

Colonel John H. McCunn

from unattached 7/21 (see above)

to Hunter's Bde., Div. Potomac 8/4