The following Union Army units and commanders fought in the Battle of Chancellorsville of the American Civil War. The Confederate order of battle is listed separately. Order of battle compiled from the army organization during the battle, the casualty returns and the reports.
MG = Major General
BG = Brigadier General
Col = Colonel
Ltc = Lieutenant Colonel
Maj = Major
Cpt = Captain
Lt = Lieutenant
w = wounded
mw = mortally wounded
k = killed
c = captured
MG Joseph Hooker
General Staff and Headquarters
General Staff:
Chief of Staff: MG Daniel Butterfield
Assistant Adjutant General: BG Seth Williams
Chief Quartermaster: BG Rufus Ingalls
Chief of Engineers: BG Gouverneur K. Warren
Bureau of Military Information: Col George H. Sharpe
Medical Director: Maj Jonathan Letterman
General Headquarters:
Command of the Provost-Marshal-General: BG Marsena R. Patrick
93rd New York: Col John S. Crocker
8th United States, Companies A, B, C, D, F, and G: Cpt Edwin W. H. Read
6th Pennsylvania Cavalry, Companies E and I: Cpt James Starr
Detachment Regular Cavalry: Lt Tattnall Paulding
Patrick's Brigade: Col William F. Rogers
21st New York: Ltc Chester W. Steinberg
23rd New York: Col Henry C. Hoffman
35th New York: Col John G. Todd
80th New York (20th Militia): Col Theodore B. Gates
Maryland Light Artillery, Battery B: Cpt Alonzo Snow
Ohio Light Artillery, 12th Battery: Cpt Aaron C. Johnson
Engineer Brigade: BG Henry W. Benham
15th New York Engineer: Col Clinton G. Colgate
50th New York Engineer: Col Charles B. Stuart
Battalion United States Engineer: Cpt Chauncey B. Reese
Signal Corps: Cpt Samuel T. Cushing
Ordnance Detachment: Lt John R. Edie
Guards and Orderlies:
Oneida (New York) Cavalry: Cpt Daniel P. Mann
MG John F. Reynolds
Chief of Artillery: Col Charles S. Wainwright
Escort:
1st Maine Cavalry, Company L: Cpt Constantine Taylor
MG Darius N. Couch
Chief of Artillery and Assistant Inspector-General: Ltc Charles H. Morgan
Escort:
6th New York Cavalry, Companies D and K: Cpt Riley Johnson
MG Daniel Sickles
Chief of Artillery: Cpt George E. Randolph
MG George Meade
Chief of Artillery: Cpt Stephen H. Weed
Escort:
17th Pennsylvania Cavalry (2 companies): Cpt William Thompson
MG John Sedgwick
Chief of Artillery: Col Charles H. Tompkins
Escort: Maj Hugh H. Janeway
1st New Jersey Cavalry, Company L: Lt Voorhees Dye
1st Pennsylvania Cavalry, Company H: Cpt William S. Craft
MG Oliver O. Howard
Chief of Artillery: Ltc Louis Schirmer
Escort:
1st Indiana Cavalry, Companies I and K: Cpt Abram Sharra
MG Henry W. Slocum
Chief of Artillery: Cpt Clermont L. Best
Provost Guard:
10th Maine Battalion (3 companies): Cpt John D. Beardsley
BG George Stoneman
BG Henry J. Hunt
