U.S. Army - Army of the Potomac

Headquarters

Headquarters and Escort

3rd United States Infantry Regiment

Captain Richard G. Lay

Headquarters Guard

Oneida (New York) Cavalry Company

Captain James E. Jenkins

Quartermaster's Guard

4th United States Cavalry Regiment

Captain Julius W. Mason

Headquarters Guard

5th United States Cavalry, Cos. BF&K

Captain Joseph P. Collins

Escort

Provost Guard

Brigadier General Marsena L. Patrick

1st Massachusetts Cavalry, Co. C

Captain Edward A. Flint

1st Massachusetts Cavalry, Co. D

Captain James J. Higginson

3rd Pennsylvania Cavalry Regiment

Lt.Colonel James W. Walsh

10th United States Infantry Regiment

from Buffalo, N. Y.

11th United States Infantry, 1st Bn.

Captain Alfred E. Lattimer

14th United States Infantry, 2nd Bn.

Captain William H. Brown

from Annapolis

Volunteer Engineer Brigade

Brigadier General Henry W. Benham

Hall's Michigan Sharpshooters

consolidated with 1st Michigan Sharpshooters

15th New York Engineer (9 cos.)

Colonel Wesley Brainard

50th New York Engineer Regiment

Colonel William H. Pettes

Regular Engineer Battalion

Brevet Major Franklin Harwood

Siege Train

Brevet Brigadier General Henry L. Abbot

1st Connecticut Heavy Artillery

Major George Ager

3rd Connecticut Independent Battery

Captain Thomas S. Gilbert

Artillery Reserve

Brigadier General William Hays

2nd Maine Battery

Captain Charles E. Stubbs

3rd Maine Battery

Captain Ezekiel R. Mayo

4th Maine Battery

Captain Charles W. White

6th Maine Battery

Captain William H. Rogers

5th Massachusetts Battery

Brevet Major Charles A. Philipps

9th Massachusetts Battery

Captain Richard S. Milton

14th Massachusetts Battery

Captain Joseph W. B. Wright

1st New Jersey Artillery, Battery C

Brevet Major Christian Woerner

1st New York Artillery, Battery C

Captain David F. Ritchie

to 5th Corps Artillery

1st New York Artillery, Battery E

Lieutenant George S. Barse

to 5th Corps Artillery

1st New York Artillery, Battery G

Captain Samuel A. McClellan

1st New York Artillery, Battery L

Lieutenant Dewitt M. Perine

to 5th Corps Artillery

12th New York Independent Battery

Captain Charles A. Clark

15th New York Heavy Artillery, Co. M

from 5th Corps Artillery

1st Ohio Artillery, Battery H

Captain Steven W. Dorsey

1st Pennsylvania Artillery, Battery B

Captain William McClelland

1st Pennsylvania Artillery, Battery F

Lieutenant John F. Campbell

1st Rhode Island Artillery, Battery E

Lieutenant Ezra K. Parker

from 6th Corps Artillery

3rd Vermont Battery

Captain Romeo H. Start

1st United States Artillery, Batteries H&I

5th United States Artillery, Batteries C &I

Lieutenant Valentine H. Stone