U.S. Army - Army of the Potomac

Ninth Army Corps

Major General Ambrose E. Burnside

First Division

Brigadier General T. G. Stevenson (until 5/10)

Colonel Daniel Leasure (5/10 - 5/12)

Major General Thomas L. Crittenden (after 5/12)

First Brigade

Colonel S. Carruth (until 5/6)

Colonel J. P. Gould (5/6 - 5/8)

Lt. Colonel S. M. Weld (5/8 - 5/12)

Brigadier General J. H. Ledlie (after 5/12)

Second Brigade

Colonel Daniel Leasure (5/1-10 & 12-14)

Lt. Col. G. P. Robinson (5/10-12 & 14-31)

Colonel J. M. Sudsburg (5/31)

Provisional Brigade

Colonel E. G. Marshall

organized 5/12

Second Division

Colonel S. G. Griffin (until 5/1)

Brigadier General R. B. Potter (after 5/1)

First Brigade

Colonel J. K. Sigfried (to 5/6)

Colonel Z. R. Bliss (5/6)

Colonel J. I. Curtin (after 5/6)

Second Brigade

Colonel H. B. Titus (5/1)

Colonel S. G. Griffin (after 5/1)

Third Division

Brigadier General Orlando B. Wilcox

First Brigade

Colonel John F. Hartranft

Second Brigade

Colonel B. C. Christ (except 5/12 - 5/20)

Colonel William Humphreys (5/12 - 5/20)

Fourth Division

Brigadier General Edward Ferrero

First Brigade

Colonel J. K. Sigfried

Second Brigade

Colonel H. G. Thomas