The following Union Army units and commanders fought in the Battle of Chaffin's Farm of the American Civil War. The Confederate order of battle is shown separately.
Abbreviations used
Military rank
MG = Major General
BG = Brigadier General
Col = Colonel
Ltc = Lieutenant Colonel
Maj = Major
Other
w = wounded
k = killed
Army of the James
MG Benjamin F. Butler
Chief of Engineers: BG Godfrey Weitzel
X Corps
MG David B. Birney
XVIII Corps
MG Edward O. C. Ord (w) September 29
BG Charles A. Heckman
BG Godfrey Weitzel
Cavalry
Notes
Sources
Composition is taken from the Official Records
Eicher, John H., and Eicher, David J., Civil War High Commands, Stanford University Press, 2001, .