Ordre de bataille unioniste de Chaffin's Farm

Première division

BG Alfred H. Terry

Col Francis B. Pond  (b)

  Col Thomas Mulcahy
  Ltc Alvin C. Voris

• 39th Illinois
• 62nd Ohio
• 67th Ohio : Ltc Alvin C. Voris
• 85th Pennsylvania

Col Joseph C. Abbott

• 6th Connecticut
• 7th Connecticut
• 3rd New Hampshire
• 7th New Hampshire
• 16th New York Heavy Artillery

Col Harris M. Plaisted

• 10th Connecticut
• 11th Maine
• 1st Maryland Cavalry
• 27th Massachusetts
• 100th New York

Deuxième division

BG Robert Sanford Foster

Col Rufus Daggett  (b)

  Ltc Albert M. Barney

• 3rd New York
• 112th New York
• 117th New York
• 142nd New York : Ltc Albert M. Barney

Col Galusha Pennypacker

• 47th New York
• 48th New York
• 76th Pennsylvania
• 97th Pennsylvania
• 203rd Pennsylvania

Col Louis Bell

• 13th Indiana
• 9th Maine
• 4th New Hampshire
• 115th New York
• 169th New York

Troisième division

(incomplète)

BG William Birney

• 29th Connecticut (Colored)
• 7th U.S. Colored Troops
• 8th U.S. Colored Troops
• 9th U.S. Colored Troops
• 45th U.S. Colored Troops

Artillerie

Col Richard H. Jackson

• 1st Battery, Connecticut Light Artillery
• 4th Battery, New Jersey Light Artillery
• 5th Battery, New Jersey Light Artillery
• 1st Pennsylvania Light Artillery, Battery E
• 3rd Rhode Island Heavy Artillery, Battery C
• 1st U.S. Artillery, Batteries C and D
• 1st U.S. Artillery, Battery M
• 3rd U.S. Artillery, Battery E
• 4th U.S. Artillery, Battery D

Première division

BG George J. Stannard  (b)

Colonel James Jourdan^[1]

BG Gilman Marston

Col Aaron Fletcher Stevens  (b)

  Col Thomas Mulcahy temp. 29 sept.
  Ltc John B. Raulston

• 13th New Hampshire
• 81st New York : Ltc John B. Raulston
• 98th New York
• 139th New York : Col Thomas Mulcahy

BG Hiram Burnham (†)

  Col Michael Donohoe  (b)
  Ltc Stephen Moffitt temp. 29 sept
  Col Edgar M. Cullen

• 8th Connecticut
• 10th New Hampshire : Col Michael Donohoe
• 96th New York : Col Edgar M. Cullen, Ltc Stephen Moffitt
• 118th New York

Col Samuel H. Roberts  (b)

  Ltc Stephen H. Moffitt

• 21st Connecticut : Capt James F. Brown
• 92nd New York
• 58th Pennsylvania
• 188th Pennsylvania : Maj Francis H. Reichard

Deuxième division

BG Charles A. Heckman

    Col Harrison S. Fairchild[note 3]
    BG Charles A. Heckman

Col James Jourdan

  Col George M. Guion

• 148th New York : Col George M. Guion
• 158th New York : Col James Jourdan
• 55th Pennsylvania

Col Edward H. Ripley

• 8th Maine
• 9th Vermont

Col Harrison S. Fairchild

• 89th New York : Maj Wellington M. Lewis
• 2nd Pennsylvania Heavy Artillery : Col James L. Anderson (†)

Troisième division^{[note 4]}

BG Charles J. Paine

Col John Henry Holman

• 1st U.S.C.T.
• 22nd U.S.C.T.
• 37th U.S.C.T.

Col Alonzo G. Draper

• 5th U.S.C.T.
• 36th U.S.C.T.
• 38th U.S.C.T.

Col Samuel A. Duncan  (b)

  Col John W. Ames

• 4th U.S.C.T.
• 6th U.S.C.T.

• U.S. Sharpshooters

Artillerie

Maj George B. Cook

• 2nd New York Light Artillery, Battery H
• 3rd New York Light Artillery, Battery E
• 3rd New York Light Artillery, Battery K
• 3rd New York Light Artillery, Battery M
• 7th Battery, New York Light Artillery
• 16th Battery, New York Light Artillery
• 17th Battery, New York Light Artillery
• 1st Pennsylvania Light Artillery, Battery A
• 1st Rhode Island Light Artillery, Battery F
• 1st U.S. Artillery, Battery B
• 4th U.S. Artillery, Battery L
• 5th U.S. Artillery, Battery A
• 5th U.S. Artillery, Battery F

Division de cavalerie

BG August V. Kautz

Col Robert M. West

• 2nd New York Cavalry
• 5th Pennsylvania Cavalry

Col Samuel P. Spear

• 1st D.C. Cavalry
• 11th Pennsylvania Cavalry

• 4th Battery, Wisconsin Light Artillery