Battle of the Crater order of battle: Union

The following Union Army units and commanders fought in the Battle of the Crater (July 30, 1864) of the American Civil War. The Confederate order of battle is listed separately.

Military Rank

 * LTG = Lieutenant General
 * MG = Major General
 * BG = Brigadier General
 * Col = Colonel
 * Ltc = Lieutenant Colonel
 * Maj = Major
 * Cpt = Captain
 * Lt = Lieutenant

Other

 * w = wounded
 * mw = mortally wounded
 * k = killed in action
 * c = captured

General in Chief
LTG Ulysses S. Grant, commander in chief

Army of the Potomac
MG George Meade

Provost Guard: BG Marsena R. Patrick
 * 1st Indiana Cavalry, Company K: Cpt Theodore Majtheny
 * 1st Massachusetts Cavalry, Companies C & D: Cpt Charles Francis Adams, Jr.
 * 80th New York: Col Theodore B. Gates
 * 3rd Pennsylvania Cavalry, Companies A, B, & M: Maj James W. Walsh
 * 68th Pennsylvania: Col Andrew H. Tippin
 * 114th Pennsylvania: Col Charles H. T. Collis

Engineer Brigade: BG Henry W. Benham
 * 15th New York Engineers (5 companies): Maj William A. Ketchum
 * 50th New York Engineers:
 * Battalion U.S. Engineers: Cpt George H. Mendell

Signal Corps: Cpt Benjamin F. Fisher

Guards and Orderlies:
 * Independent Company Oneida Cavalry (New York): Cpt Daniel P. Mann

IX Corps
MG Ambrose Burnside

Provost Guard:
 * 8th United States: Cpt Milton Cogswell

Army of the James
MG Benjamin F. Butler

Siege Artillery: Col Henry L. Abbot
 * 1st Connecticut Heavy Artillery: Col Henry Larcom Abbot
 * Company A: Cpt Edward A. Gillet
 * Company B: Cpt Albert F. Booker
 * Company M: Cpt Franklin A. Pratt

XVIII Corps
MG Edward Ord

X Corps
(attached to XVIII Corps)