U.S. Army - Army of the Potomac

Cavalry Corps

Brigadier General Alfred Pleasonton

First Division

Brigadier General John Buford

First Brigade

Colonel George Chapman

Second Brigade

Colonel Thomas C. Devin

Reserve Brigade

Brigadier General Wesley Merritt

Second Division

Bde. Gen. David McM. Gregg

First Brigade

Colonel J. B. McIntosh (until 10/1)

Colonel John P. Taylor (after 10/1)

Second Brigade

Colonel John I. Gregg

Third Division

Bde. Gen. Judson Kilpatrick

First Brigade

Colonel H. E. Davies

Second Brigade

Bde. Gen. George A. Custer

1st Brigade Horse Artillery

Captain James M. Robertson

6th New York Indepdent Battery

Captain Joseph W. Martin

2nd United States Artillery, Batteries B&L

Lieutenant Albert O. Vincent

2nd United States Artillery, Battery D

Lieutenant Edward B. Williston

2nd United States Artillery, Battery M

Lieutenant Alexander C. M. Pennington, Jr.

4th United States Artillery, Battery A

Lieutenant Horatio B. Reed

4th United States Artillery, Battery E

Captain Samuel S. Elder

2nd Brigade Horse Artillery

Captain William M. Graham

9th Michigan Battery

Captain Jabez J. Daniels

to Army Cumberland, 11th Corps Artillery

1st United States Artillery, Battery E

Lieutenant Egbert W. Olcott

1st United States Artillery, Battery K

Lieutenant John Egan

2nd United States Artillery, Battery A

Lieutenant Robert Clark

2nd United States Artillery, Battery G

Lieutenant John H. Butler

3rd United States Artillery, Battery C

Captain Dunbar R. Ransom