The following Union Army units and commanders fought in the Siege of Vicksburg of the American Civil War. The Confederate order of battle is listed separately. Order of battle compiled from the army organizationMultiple commander names indicate command succession of command during the battle or the campaign. during the campaign.Official Records, Series I, Volume XXIV, Part 2, pages 148-158
Abbreviations used Military rank MG = Major General BG = Brigadier General Col = Colonel Ltc = Lieutenant Colonel Maj = Major Cpt = Captain Lt = Lieutenant Sgt = Sergeant
Other w = wounded mw = mortally wounded k = killed
Army of the Tennessee
MG Ulysses S. Grant, Commanding
General Staff: Acting Inspector General: BG Jeremiah C. Sullivan Chief of Transportation: Col Joseph D. Webster Chief of Staff: Ltc John A. Rawlins
General Headquarters: Escort: 4th Illinois Cavalry, Company A: Cpt Embury D. Osband Engineers: 1st Battalion, Engineer Regiment of the West: Maj William Tweeddale Mississippi Marine Brigade: BG Alfred W. ElletThe judge advocate general declared this unit as a special contingent of the army, however Grant later wrote "the Marine Brigade is not subject to my orders" Mississippi Ram Fleet: Col Charles Rivers Ellet 1st Battalion Infantry: Ltc George E. Currie 1st Battalion Cavalry: Major James M. Hubbard Artillery Battery: Cpt Daniel Walling
IX Corps
MG John ParkeIX Corps: joined from the Department of the Ohio, June 14 to 17.
Division Brigade Regiments and OthersFirst Division
BG Thomas Welsh 1st Brigade
Col Henry Bowman 36th Massachusetts: Ltc John B. Norton 17th Michigan: Ltc Constant Luce 27th Michigan: Col Dorus M. Fox 45th Pennsylvania: Col John I. Curtin 3rd Brigade
Col Daniel Leasure 2nd Michigan: Col William Humphrey 8th Michigan: Col Frank Graves 20th Michigan: Ltc W. Huntington Smith 79th New York: Col David Morrison 100th Pennsylvania: Ltc Mathew M. Dawson Artillery Battery D, Pennsylvania Light: Cpt George W. DurellTransferred from Second Division June 25.Second Division
BG Robert B. Potter 1st Brigade
Col Simon Goodell Griffin 6th New Hampshire: Ltc Henry H. Pearson 9th New Hampshire: Col Herbert B. Titus 7th Rhode Island: Col Zenas Bliss 2nd Brigade
BG Edward Ferrero 35th Massachusetts: Col Sumner Carruth 11th New Hampshire: Ltc Moses N. Collins 51st New York: Col Charles Le Gendre 51st Pennsylvania: Col John F. Hartranft 3rd Brigade
Col Benjamin C. Christ 29th Massachusetts: Ltc Joseph H. Barnes 46th New York: Col Joseph P. Gerhardt 50th Pennsylvania: Ltc Thomas S. Brenholtz Artillery Battery L, 2nd New York: Cpt Jacob Roemer Artillery Reserve Battery E, 2nd United States: Lt Samuel N. Benjamin
XIII Corps
MG John A. McClernandRelieved June 19.
MG Edward Ord
Escort 3rd Illinois Cavalry, Company L: Cpt David R. Sparks Pioneers Kentucky Engineers (Independent Company): Cpt William F. Patterson
Division Brigade Regiments and OthersNinth Division
BG Peter J. Osterhaus 1st Brigade
BG Albert L. Lee (w May 19)
Col James KeigwinAssumed command May 19. 118th Illinois: Col John G. Fonda 49th Indiana: Maj Arthur J. Hawhe, Ltc Joseph H. Thornton 69th Indiana: Col Thomas W. Bennett, Ltc Oran Perry 7th Kentucky: Ltc John Lucas, Col Reuben May 120th Ohio: Col Marcus M. Spiegel 2nd Brigade
Col Daniel W. Lindsey 54th Indiana: Col Fielding Mansfield 22nd Kentucky: Ltc George W. Monroe 16th Ohio: Cpt Eli W. Botsford, Maj Milton Mills 42nd Ohio: Ltc Don A. Pardee, Col Lionel A. Sheldon 114th Ohio: Col John Cradlebaugh (w May 22), Ltc John H. Kelly Cavalry 2nd Illinois Cavalry (5 companies): Ltc Daniel B. Bush Jr. 3rd Illinois Cavalry (3 companies): Cpt John L. Campbell 6th Missouri Cavalry (7 companies): Col Clark Wright Artillery
Cpt Jacob T. Foster Battery F, 1st Michigan Light: Cpt Charles H. Lanphere 1st Battery, Wisconsin Light: Lt Oscar F. NuttingTenth Division
BG Andrew J. Smith
Escort 4th Indiana Cavalry, Company C: Cpt Andrew P. Gallagher 1st Brigade
BG Stephen G. Burbridge 16th Indiana: Col Thomas J. Lucas, Maj James H. Redfield 60th Indiana: Col Richard Owen 67th Indiana: Ltc Theodore E. Buehler 83rd Ohio: Col Frederick W. Moore 96th Ohio: Col Joseph W. Vance 23rd Wisconsin: Col Joshua James Guppey, Ltc William Freeman Vilas 2nd Brigade
Col William J. Landram 77th Illinois: Col David P. Grier 97th Illinois: Col Friend S. Rutherford, Ltc Lewis D. Martin 130th Illinois: Col Nathaniel Niles 19th Kentucky: Ltc John Cowan, Maj Josiah J. Mann 48th Ohio: Ltc Job R. Parker (w May 22), Col Peter J. Sullivan Artillery Chicago Mercantile Battery, Illinois Light: Cpt Patrick H. White 17th Battery, Ohio Light: Cpt Ambrose A. Blount, Cpt Charles S. RiceTwelfth Division
BG Alvin P. Hovey
Escort 1st Indiana Cavalry, Company C: Lt James L. Carey 1st Brigade
BG George F. McGinnis 11th Indiana: Ltc William W. Darnall 24th Indiana: Col William T. Spicely 34th Indiana: Col Robert A. Cameron 46th Indiana: Col Thomas H. Bringhurst 29th Wisconsin: Col Charles R. Gill, Ltc William A. Greene 2nd Brigade
Col James R. Slack 87th Illinois: Col John E. Whiting 47th Indiana: Ltc John A. McLaughlin 24th Iowa: Col Eber C. Byam, Ltc John Q. Wilds 28th Iowa: Col John Connell 56th Ohio: Col William H. Raynor Artillery Battery A, 1st Missouri Light: Cpt George W. Schofield 2nd Battery, Ohio Light: Lt Augustus Beach 16th Battery, Ohio Light: Lt Russell P. TwistFourteenth Division
BG Eugene A. Carr
Escort 3rd Illinois Cavalry, Company G: Cpt Enos McPhail, Cpt Samuel S. Marrett 1st Brigade
BG William P. Benton
Col Henry D. WashburnAssumed command May 31.
Col David ShunkAssumed command June 27. 33rd Illinois: Col Charles E. Lippincott 99th Illinois: Col George W. K. Bailey, Ltc Lemuel Parke 8th Indiana: Col David Shunk, Maj Thomas J. Brady 18th Indiana: Col Henry D. Washburn, Cpt Jonathan H. Williams 1st United States Infantry (siege guns): Maj Maurice Maloney 2nd Brigade
BG Michael K. Lawler 21st Iowa: Ltc Cornelius W. Dunlap (k May 22), Maj Salue G. Van Anda 22nd Iowa: Col William M. Stone (w May 22), Ltc Harvey Graham (c May 22), Maj Joseph B. Atherton, Cpt James Robertson, Cpt Charles N. Lee 23rd Iowa: Col Samuel L. Glasgow 11th Wisconsin: Col Charles L. Harris, Maj Arthur Platt Artillery Battery A, 2nd Illinois Light: Lt Frank B. Fenton, Cpt Peter Davidson 1st Battery, Indiana Light: Cpt Martin Klauss
XV Corps
MG William T. Sherman
Chief of Staff: Ltc John Henry Hammond Chief of Artillery: Maj Ezra Taylor
Division Brigade Regiments and OthersFirst Division
MG Frederick Steele 1st Brigade
Col Francis H. Manter
Col Bernard G. FarrarAssumed command June 13. 13th Illinois: Col Adam B. Gorgas 27th Missouri: Col Thomas Curley 29th Missouri: Col James Peckham 30th Missouri: Ltc Otto Schadt 31st Missouri: Col Thomas C. Fletcher, Maj Frederick Jaensch, Ltc Samuel P. Simpson 32nd Missouri: Maj Abraham J. Seay 2nd Brigade
Col Charles R. Woods 25th Iowa: Col George A. Stone 31st Iowa: Col William Smyth, Maj Theodore Stimming 3rd Missouri: Ltc Theodore Meumann 12th Missouri: Col Hugo Wangelin 17th Missouri: Col Francis Hassendeubel (mw July 2), Ltc John F. Cramer 76th Ohio: Ltc William B. Woods 3rd Brigade
BG John M. Thayer 4th Iowa: Col James A. Williamson, Ltc George Burton 9th Iowa: Maj Don. A. Carpenter, Cpt Frederick S. Washburn, Col David Carskaddon 26th Iowa: Col Milo Smith 30th Iowa: Col Charles H. Abbott (k May 22), Maj James P. Milliken (mw May 22), Cpt Robert D. Creamer Artillery 1st Battery, Iowa Light: Cpt Henry H. Griffiths Battery F, 2nd Missouri Light: Cpt Clemens Landgraeber 4th Battery, Ohio Light: Cpt Louis Hoffmann Cavalry Kane County (Illinois) Independent Company: Lt Thomas J. Beebe 3rd Illinois Cavalry, Company D: Lt Jonathan KershnerSecond Division
MG Francis Preston Blair Jr. 1st Brigade
Col Giles A. Smith 113th Illinois: Col George B. Hoge (w May 22), Ltc John W. Paddock 116th Illinois: Col Nathan W. Tupper 6th Missouri: Ltc Ira Boutell, Col James H. Blood 8th Missouri: Ltc David C. Coleman (w May 22), Maj Dennis T. Kirby 13th United States, 1st Battalion: Cpt Edward C. Washington (k May 19), Cpt Charles Ewing (w May 19), Cpt Charles C. Smith 2nd Brigade
Col Thomas Kilby Smith
BG Joseph A. J. LightburnAssumed command May 24. 55th Illinois: Col Oscar Malmborg 127th Illinois: Col Hamilton N. Eldridge 83rd Indiana: Col Benjamin J. Spooner 54th Ohio: Ltc Cyrus W. Fisher 57th Ohio: Col Americus V. Rice (w May 22), Ltc Samuel R. Mott 3rd Brigade
BG Hugh Boyle Ewing 30th Ohio: Ltc George H. Hildt (w May 22), Col Theodore Jones 37th Ohio: Ltc Louis von Blessing (w May 22), Maj Charles Hipp, Col Edward Siber 47th Ohio: Col Augustus C. Parry 4th West Virginia: Col James H. Dayton Artillery Battery A, 1st Illinois Light: Cpt Peter P. Wood Battery B, 1st Illinois Light: Cpt Samuel E. Barrett, Lt Israel P. Rumsey Battery H, 1st Illinois Light: Cpt Levi W. Hart 8th Battery, Ohio Light: Cpt James F. Putnam Cavalry Thielemann's (Illinois) Battalion, Companies A and B: Cpt Milo Thielemann 10th Missouri Cavalry, Company C: Cpt Daniel W. Ballou, Lt Benjamin JoelThird Division
BG James M. Tuttle 1st Brigade
BG Ralph P. Buckland
Col William L. McMillenAssumed command June 22. 114th Illinois: Col James W. Judy 93rd Indiana: Col De Witt C. Thomas 72nd Ohio: Ltc Le Roy Crockett, Maj Charles G. Eaton 95th Ohio: Col William L. McMillen, Ltc Jefferson Brumback 2nd Brigade
BG Joseph A. Mower 47th Illinois: Ltc Samuel R. Baker 5th Minnesota: Col Lucius F. Hubbard 11th Missouri: Col Andrew J. Weber (mw June 29), Ltc William L. Barnum 8th Wisconsin: Col George W. Robbins 3rd Brigade
BG Charles L. Matthies
Col Joseph J. WoodsAssumed command June 1. 8th Iowa: Col James L. Geddes 12th Iowa: Col. Joseph J. Woods, Ltc Samuel R. Edgington 35th Iowa: Col Sylvester G. Hill Artillery
Cpt Nelson T. Spoor Battery E, 1st Illinois Light: Cpt Allen C. Waterhouse 2nd Battery, Iowa Light: Lt Joseph R. Reed Unattached cavalry 4th Iowa Cavalry: Ltc Simeon D. Swan
XVI Corps (detachment) MG Cadwallader C. Washburn
Division Brigade Regiments and OthersFirst DivisionJoined from La Grange, Tenn., June 12.
BG William Sooy Smith
Escort 7th Illinois Cavalry, Company B: Cpt Henry C. Forbes 1st Brigade
Col John Mason Loomis
Col Sanford J. Stoughton 26th Illinois: Maj John B. Harris 90th Illinois: Col Timothy O'Meara 12th Indiana: Col Reuben Williams 100th Indiana: Ltc Albert Heath 2nd Brigade
Col Stephen G. Hicks 40th Illinois: Maj Hiram W. Hall 103rd Illinois: Col Willard A. Dickerman 15th Michigan: Col John M. Oliver 46th Ohio: Col Charles C. Walcutt 3rd Brigade
Col Joseph R. Cockerill 97th Indiana: Col Robert F. Catterson 99th Indiana: Col Alexander Fowler 53rd Ohio: Col Wells S. Jones 70th Ohio: Maj William B. Brown 4th Brigade
Col William W. Sanford 48th Illinois: Ltc Lucien Greathouse 6th Iowa: Col John M. Corse Artillery
Cpt William Cogswell Battery F, 1st Illinois Light: Cpt John T. Cheney Battery I, 1st Illinois Light: Lt William N. Lansing Cogswell's Illinois Battery: Lt Henry G. Eddy 6th Battery, Indiana Light: Cpt Michael MuellerFourth DivisionJoined from Memphis, Tenn., May 13 to 20. Temporarily attached to the Thirteenth Corps.
BG Jacob G. Lauman 1st Brigade
Col Isaac C. Pugh 41st Illinois: Ltc John H. Nale 53rd Illinois: Ltc Seth C. Earl 3rd Iowa: Col Aaron Brown 33rd Wisconsin: Col Jonathan Baker Moore 2nd Brigade
Col Cyrus Hall 14th Illinois: Ltc William Camm (c June 22), Cpt Augustus H. Cornman 15th Illinois: Col George C. Rogers 46th Illinois: Col Benjamin Dornblaser 76th Illinois: Col Samuel T. Busey 53rd Indiana:Transferred to Third Brigade June 22. Col Walter Q. Gresham 3rd Brigade
Col George E. Bryant
Col Amory K. JohnsonAssumed command June 9. 28th Illinois: Maj Hinman Rhodes 32nd Illinois: Col John Logan, Ltc William Hunter