Siege of Corinth order of battle: Union
The following units and commanders of the Union Army fought at the Siege of Corinth of the American Civil War. The Union Army had approximately 150,000 present for duty. The Confederate order of battle is shown separately. Order of battle compiled from the army organization during the siege.
Abbreviations used
Military Rank
MG = Major GeneralBG = Brigadier GeneralCol = ColonelLtc = Lieutenant ColonelMaj = MajorCpt = CaptainLt = LieutenantOther
w = woundedmw = mortally woundedk = killedDepartment of the Mississippi
MG Henry W. Halleck- Second-in-Command: MG Ulysses S. Grant
- Chief of Staff and Chief Engineer: BG George W. Cullum
- Chief of Cavalry: BG Andrew J. Smith
- Chief Topographical Engineer: Col George Thom
- Aide de Camp: Col Norton Parker Chipman
- Assistant Adjutant General: Cpt John C. Kelton
District of West Tennessee
MG Ulysses S. Grant- Chief of Staff: Col Joseph D. Webster
- Aide de Camp: Col James B. McPherson
- Provost Marshal General: Col William S. Hillyer after 3 May
- Provost Marshal General: Ltc DeWitt C. Anthony until May'
- Assistant Adjutant General: Cpt John A. Rawlins
- Chief Commissary: Cpt John Parker Hawkins
Right Wing (Army of the Tennessee)
MG George H. Thomas- Chief of Staff and Asst. Adjutant General: Cpt George E. Flynt
| Division | Brigade | Regiments and Others |
First Division MG George H. Thomas until 3 May BG Thomas W. Sherman | 1st Brigade BG Albin F. Schoepf |
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| First Division MG George H. Thomas until 3 May BG Thomas W. Sherman | 2nd Brigade BG Speed Smith Fry | |
| First Division MG George H. Thomas until 3 May BG Thomas W. Sherman | 3rd Brigade BG Robert L. McCook |
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| First Division MG George H. Thomas until 3 May BG Thomas W. Sherman | Artillery | |
| First Division MG George H. Thomas until 3 May BG Thomas W. Sherman | Cavalry | |
| Second Division BG Thomas A. Davies until 2 June BG Edward Otho Cresap Ord | 1st Brigade Col James Tuttle |
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| Second Division BG Thomas A. Davies until 2 June BG Edward Otho Cresap Ord | 2nd Brigade BG Richard J. Oglesby |
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| Second Division BG Thomas A. Davies until 2 June BG Edward Otho Cresap Ord | 3rd Brigade Col Silas Baldwin |
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| Second Division BG Thomas A. Davies until 2 June BG Edward Otho Cresap Ord | Artillery Maj John S. Cavender |
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| Second Division BG Thomas A. Davies until 2 June BG Edward Otho Cresap Ord | Cavalry |
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| Fourth Division BG Stephen A. Hurlbut | 1st Brigade BG Jacob G. Lauman |
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| Fourth Division BG Stephen A. Hurlbut | 2nd Brigade BG James C. Veatch |
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| Fourth Division BG Stephen A. Hurlbut | Artillery |
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| Fourth Division BG Stephen A. Hurlbut | Cavalry |
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| Fifth Division MG William T. Sherman | 1st Brigade Col John A. McDowell until 12 May Col Morgan L. Smith | Before 15 May
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| Fifth Division MG William T. Sherman | 2nd Brigade Col David Stuart until 15 May Col John A. McDowell | Before 15 May
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| Fifth Division MG William T. Sherman | 3rd Brigade Col Jesse Hildebrand until 15 May Col Ralph P. Buckland until 16 May BG James W. Denver | Before 15 May
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| Fifth Division MG William T. Sherman | 4th Brigade Col Ralph P. Buckland |
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Fifth Division MG William T. Sherman | Artillery Maj Ezra Taylor |
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| Fifth Division MG William T. Sherman | Cavalry Col T. Lyle Dickey |
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| Sixth Division BG Thomas J. McKean until 30 Apr BG Thomas W. Sherman until 3 May BG Thomas J. McKean | 1st Brigade Col John L. Doran until 23 May BG John McArthur |
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| Sixth Division BG Thomas J. McKean until 30 Apr BG Thomas W. Sherman until 3 May BG Thomas J. McKean | 2nd Brigade Col John M. Oliver |
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| Sixth Division BG Thomas J. McKean until 30 Apr BG Thomas W. Sherman until 3 May BG Thomas J. McKean | 3rd Brigade Col Marcellus M. Crocker |
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| Sixth Division BG Thomas J. McKean until 30 Apr BG Thomas W. Sherman until 3 May BG Thomas J. McKean | Artillery Cpt Andrew Hickenlooper |
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| Sixth Division BG Thomas J. McKean until 30 Apr BG Thomas W. Sherman until 3 May BG Thomas J. McKean | Cavalry |
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Reserves (Army of the Tennessee)
MG John A. McClernand- Assistant Inspector General: Col Thomas E. G. Ransom
| Division | Brigade | Regiments and Others |
First Division MG John A. McClernand until 2 May BG John A. Logan until 4 May BG Henry M. Judah until 2 June BG Thomas A. Davies | 1st Brigade BG John A. Logan until 2 May Col Michael K. Lawler until 4 May BG John A. Logan |
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| First Division MG John A. McClernand until 2 May BG John A. Logan until 4 May BG Henry M. Judah until 2 June BG Thomas A. Davies | 2nd Brigade Col C. Carroll Marsh until 4 May Col Andrew J. Babcock |
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| First Division MG John A. McClernand until 2 May BG John A. Logan until 4 May BG Henry M. Judah until 2 June BG Thomas A. Davies | 3rd Brigade BG Leonard F. Ross |
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| First Division MG John A. McClernand until 2 May BG John A. Logan until 4 May BG Henry M. Judah until 2 June BG Thomas A. Davies | Artillery |
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| First Division MG John A. McClernand until 2 May BG John A. Logan until 4 May BG Henry M. Judah until 2 June BG Thomas A. Davies | Cavalry |
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| Third Division MG Lewis Wallace | 1st Brigade Col Morgan L. Smith until 12 May BG Alvin P. Hovey |
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| Third Division MG Lewis Wallace | 2nd Brigade Col John M. Thayer |
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| Third Division MG Lewis Wallace | 3rd Brigade Col Charles Whittlesey until May Col Charles R. Woods |
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| Third Division MG Lewis Wallace | Artillery |
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| Third Division MG Lewis Wallace | Cavalry |
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Center (Army of the Ohio)
MG Don Carlos Buell- Chief of Staff: Col James Barnet Fry
- Assistant Inspector General: Maj Adam J. Slemmer
- Assistant Inspector General: Cpt Charles Champion Gilbert
- Assistant Quartermaster: Cpt Alvan C. Gillem '
- Assistant Quartermaster: Cpt Andrew J. Mackay '
- Chief Engineer: Cpt James St. Clair Morton
Left Wing (Army of the Mississippi)
MG John Pope- Chief of Staff: BG Washington L. Elliott after 12 June
- Assistant Adjutant General: Maj Speed Butler
- Assistant Inspector General: Maj John M. Corse
- Assistant Quartermaster: Cpt Philip H. Sheridan
| Division | Brigade | Regiments and Others |
Cavalry Division BG Gordon Granger | 1st Brigade Col William P. Kellogg until 1 June Col John K. Mizner |
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| Cavalry Division BG Gordon Granger | 2nd Brigade Col Washington Lafayette Elliott until 1 June Col Philip H. Sheridan |
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| Cavalry Division BG Gordon Granger | Artillery |
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| Reporting Directly | Reserve Brigade Col William P. Carlin |
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| Reporting Directly | Artillery Brigade Ltc Warren L. Lothrop |
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| Reporting Directly | Unattached Units |
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Right Wing
MG William S. Rosecrans assigned 29 May| Division | Brigade | Regiments and Others |
First Division BG Eleazar Paine | 1st Brigade BG John M. Palmer |
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| First Division BG Eleazar Paine | 2nd Brigade Col James D. Morgan until 1 May BG Daniel Tyler |
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| First Division BG Eleazar Paine | Artillery |
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| Second Division BG David S. Stanley | 1st Brigade Col John Groesbeck until 8 July Col Joseph L. Kirby Smith |
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| Second Division BG David S. Stanley | 2nd Brigade BG Joseph B. Plummer until 29 May Col Robert C. Murphy |
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| Second Division BG David S. Stanley | Artillery |
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Left Wing
BG Schuyler Hamilton assigned 29 May| Division | Brigade | Regiments and Others |
Third Division BG Schuyler Hamilton until 29 May BG Joseph B. Plummer | 1st Brigade BG Napoleon B. Buford |
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| Third Division BG Schuyler Hamilton until 29 May BG Joseph B. Plummer | 2nd Brigade Col Nicholas Perczel |
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| Third Division BG Schuyler Hamilton until 29 May BG Joseph B. Plummer | Artillery |
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| Fourth Division BG Jefferson C. Davis | 1st Brigade BG Robert B. Mitchell |
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| Fourth Division BG Jefferson C. Davis | Asboth's Brigade BG Alexander Asboth |
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| Fifth Division created 1 June BG Alexander Asboth | 1st Brigade Col Nicholas Greusel |
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| Fifth Division created 1 June BG Alexander Asboth | 2nd Brigade Ltc Bernard Laiboldt |
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