Spotsylvania Court House Union order of battle

The following Union Army units and commanders fought in the Battle of Spotsylvania Court House (May 8–21, 1864) of the American Civil War. The Confederate order of battle is listed separately. Order of battle compiled from the casualty returns and the reports.
Forces operating against Richmond May 8–16, 1864.
LTG Ulysses S. Grant, General-in-Chief, Union armies
Escort:
IX Corps.
MG Ambrose E. Burnside
Army of the Potomac.
MG George G. Meade
General Staff:
General Headquarters:
Provost Guard: BG Marsena R. Patrick
Engineer Troops:
Guards and Orderlies:
II Corps.
MG Winfield S. Hancock
Escort:
V Corps.
MG Gouverneur K. Warren
Provost Guard:
VI Corps.
MG John Sedgwick (k)
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BG Horatio G. Wright
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Escort:
Cavalry Corps.
MG Philip H. Sheridan
Escort:
Artillery.
BG Henry J. Hunt
Forces operating against Richmond May 17–21, 1864.
LTG Ulysses S. Grant, General-in-Chief, Union armies
Escort:
IX Corps.
MG Ambrose E. Burnside
Army of the Potomac.
MG George G. Meade
General Staff:
General Headquarters:
Provost Guard: BG Marsena R. Patrick
Engineer Troops:
Guards and Orderlies:
II Corps.
MG Winfield S. Hancock
Escort:
V Corps.
MG Gouverneur K. Warren
Provost Guard:
VI Corps.
BG Horatio G. Wright
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Escort: