U.S. Army

22nd Army Corps, Department of Washington

Major General C. C. Augur

Defences North of the Potomac

Brigadier General Martin D. Hardin

First Brigade

Colonel C.H. Long

Second Brigade

Colonel W.S. Abert

Third Brigade

Major G.S. Worcester

Defences South of the Potomac

Bde. Gen. G. A. DeRussy

First Brigade

Colonel J.N.G. Whistler

Second Brigade

Colonel Charles Barnes

Third Brigade

Lt. Colonel S.C. Hart

Fourth Brigade

Colonel C.C. Meservey

1st Separate Brigade

Colonel William Gamble

8th Illinois Cavalry Regiment

16th Massachusetts Independent Battery

13th New York Cavalry Regiment

16th New York Cavalry Regiment

5th Pennsylvania Heavy Artillery

202nd Pennsylvania Heavy Artillery

Dwight's Division

Bde. Gen. William Dwight

to Dept. of the South

District of Alexandria

Major General John G. Parke

26th Michigan Infantry, Company F

201st Pennsylvania Infantry Regiment

to Fort Delaware

3rd United States Artillery, Battys. L&M

District of Washington

Colonel G. W. Gile

First Brigade

Colonel G. W. Gile

trasferred to Washington Garrison

150th Pennsylvania Infantry, Co. K

Light Artillery Camp Camp Berry

Lt. Colonel J. A. Hall (to 5/7)

Bde. Gen. A. P. Howe

Baltimore Maryland Battery

30th New York Independent Battery

1st Pennsylvania Artillery, Battery G

Pennsylvania Independent Battery H

1st West Virginia Artillery, Battery E

3rd United States Artillery, Battery I

4th United States Artillery, Battery A

4th United States Artillery, Batteries F&H

4th United States Artillery, Battery G

5th United States Artillery, Battery I

5th United States Artillery, Battery M