Chickamauga Union order of battle

First Division
      BG Absalom Baird

   Col Benjamin F. Scribner

• 38th Indiana: Ltc Daniel F. Griffin
• 2nd Ohio: Ltc Obadiah C. Maxwell, Maj William T. Beatty, Cpt James Warnock
• 33rd Ohio: Col Oscar F. Moore
• 94th Ohio: Maj Rue P. Hutchins
• 10th Wisconsin: Ltc John H. Ely, Cpt Jacob W. Roby

   BG John C. Starkweather

• 24th Illinois: Col Geza Mihalotzy, Cpt August Mauff
• 79th Pennsylvania: Col Henry A. Hambright
• 1st Wisconsin: Ltc George B. Bingham
• 21st Wisconsin: Ltc Harrison C. Hobart, Cpt Charles H. Walker

   BG John H. King

• 15th United States, 1st Battalion: Cpt Albert B. Dod
• 16th United States, 1st Battalion: Maj Sidney Coolidge, Cpt R. E. A. Crofton
• 18th United States, 1st Battalion: Cpt George W. Smith
• 18th United States, 2nd Battalion: Cpt Henry Haymond
• 19th United States, 1st Battalion: Maj Samuel K. Dawson, Cpt Edmund L. Smith

• 4th Battery, Indiana Light: Lt David Flansburg, Lt Henry J. Willits
• Battery A, 1st Michigan Light: Lt George W. Van Pelt, Lt Almerick W. Wilbur
• Battery H, 5th United States: Lt Howard M. Burnham, Lt Joshua A. Fessenden

Second Division
      MG James S. Negley

   BG John Beatty

• 104th Illinois: Ltc Douglas Hapeman
• 42d Indiana: Ltc William T. B. McIntire
• 88th Indiana: Col George Humphrey
• 15th Kentucky: Col Marion C. Taylor

   Col Timothy R. Stanley
   Col William L. Stoughton

• 19th Illinois: Ltc Alexander W. Raffen
• 11th Michigan: Col William L. Stoughton, Ltc Melvin Mudge
• 18th Ohio: Ltc Charles H. Grosvenor

   Col William Sirwell

• 37th Indiana: Ltc William D. Ward
• 21st Ohio: Ltc Dwella M. Stoughton, Maj Arnold McMahan, Cpt Charles H. Vantine
• 74th Ohio: Cpt Joseph Fisher
• 78th Pennsylvania: Ltc Archibald Blakeley

• Bridges' Battery, Illinois Light: Cpt Lyman Bridges
• Battery G, 1st Ohio Light: Cpt Alexander Marshall
• Battery M, 1st Ohio Light: Cpt Frederick Schultz

Third Division
      BG John M. Brannan

   Col John M. Connell

• 82nd Indiana: Col Morton C. Hunter
• 17th Ohio: Ltc Durbin Ward
• 31st Ohio: Ltc Frederick W. Lister
• 38th Ohio: Col Edward It. Phelps

   Col John T. Croxton
   Col William H. Hays

• 10th Indiana: Col William B. Carroll, Ltc Marsh B. Taylor
• 74th Indiana: Col Charles W. Chapman, Ltc Myron Baker
• 4th Kentucky: Ltc P. Burgess Hunt, Maj Robert M. Kelly
• 10th Kentucky: Col William H. Hays, Ltc Gabriel C. Wharton
• 14th Ohio: Ltc Henry D. Kingsbury

   Col Ferdinand Van Derveer

• 87th Indiana: Col Newell Gleason
• 2nd Minnesota: Col James George
• 9th Ohio: Col Gustave Kammerling
• 35th Ohio: Ltc Henry V. N. Boynton

• Battery D, 1st Michigan Light: Cpt Josiah W. Church
• Battery C, 1st Ohio Light: Lt Marco B. Gary
• Battery I, 4th United States: Lt Frank G. Smith

Fourth Division
      MG Joseph J. Reynolds

   Col John T. Wilder

• 92d Illinois: Col Smith D. Atkins
• 98th Illinois: Col John J. Funkhouser, Ltc Edward Kitchell
• 123d Illinois: Col James Monroe
• 17th Indiana: Maj William T. Jones
• 72nd Indiana: Col Abram O. Miller

   Col Edward A. King
   Col Milton S. Robinson

• 68th Indiana: Cpt Harvey J. Espy
• 75th Indiana: Col Milton S. Robinson, Ltc William O'Brien
• 101st Indiana: Ltc Thomas Doan
• 105th Ohio: Maj George T. Perkins

   BG John B. Turchin

• 18th Kentucky: Ltc Hubbard K. Milward, Cpt John B. Heltemes
• 11th Ohio: Col Philander P. Lane
• 36th Ohio: Col William G. Jones, Ltc Hiram F. Devol
• 92nd Ohio: Col Benjamin D. Fearing, Ltc Douglas Putnam, Jr.

• 18th Battery, Indiana Light: Cpt Eli Lilly
• 19th Battery, Indiana Light: Cpt Samuel J. Harris, Lt Robert S. Lackey
• 21st Battery, Indiana Light: Cpt William W. Andrew

First Division
      BG Jefferson C. Davis

   Col P. Sidney Post

• 59th Illinois: Ltc Joshua C. Winters
• 74th Illinois: Col Jason Marsh
• 75th Illinois: Col John E. Bennett
• 22nd Indiana: Col Michael Gooding
• 5th Battery, Wisconsin Light Artillery: Cpt George Q. Gardner

   BG William P. Carlin

• 21st Illinois: Col John W. S. Alexander, Cpt Chester K. Knight
• 38th Illinois: Ltc Daniel H. Gilmer, Cpt Willis G. Whitehurst
• 81st Indiana: Cpt Nevil B. Boone, Maj James E. Calloway
• 101st Ohio: Ltc John Messer, Maj Bedan B. McDanald, Cpt Leonard D. Smith
• 2d Battery, Minnesota Light Artillery: Lt Albert Woodbury, Lt Richard L. Dawley

   Col Hans C. Heg
   Col John A. Martin

• 25th Illinois: Maj Samuel D. Wall, Cpt Wesford Taggart
• 35th Illinois: Ltc William P. Chandler
• 8th Kansas: Col John A. Martin, Ltc James L. Abernathy
• 15th Wisconsin: Ltc Ole C. Johnson
• 8th Battery, Wisconsin Light Artillery: Lt John D. McLean

Second Division
      BG Richard W. Johnson

   BG August Willich

• 89th Illinois: Ltc Duncan J. Hall, Maj William D. Williams
• 32rd Indiana: Ltc Frank Erdelmeyer
• 39th Indiana: Col Thomas J. Harrison
• 15th Ohio: Ltc Frank Askew
• 49th Ohio: Maj Samuel F. Gray, Cpt Luther M. Strong
• Battery A, 1st Ohio Light Artillery: Cpt Wilbur F. Goodspeed

   Col Joseph B. Dodge

• 79th Illinois: Col Allen Buckner
• 29th Indiana: Ltc David M. Dunn
• 30th Indiana: Ltc Orrin D. Hurd
• 77th Pennsylvania: Col Thomas E. Rose, Cpt Joseph J. Lawson
• 20th Battery, Ohio Light Artillery: Cpt. Edward Grosskopff

   Col Philemon P. Baldwin
   Col William W. Berry

• 6th Indiana: Ltc Hagerman Tripp, Maj Calvin D. Campbell
• 5th Kentucky: Col William W. Berry, Cpt John M. Huston
• 1st Ohio: Ltc Bassett Langdon
• 93rd Ohio: Col Hiram Strong, Ltc William H. Martin
• 5th Battery, Indiana Light Artillery: Cpt Peter Simonson

Third Division
      MG Philip Sheridan

   BG William Haines Lytle
   Col Silas Miller

• 36th Illinois: Col Silas Miller, Ltc Porter C. Olson
• 88th Illinois: Ltc Alexander S. Chadbourne
• 21st Michigan: Col William B. McCreery, Maj Seymour Chase
• 24th Wisconsin: Ltc Theodore S. West, Maj Carl von Baumbach
• 11th Battery, Indiana Light Artillery: Cpt Arnold Sutermeister

   Col Bernard Laiboldt

• 44th Illinois: Col Wallace W. Barrett
• 73rd Illinois: Col James F. Jaquess
• 2nd Missouri: Maj Arnold Beck
• 15th Missouri: Col Joseph Conrad
• Battery G, 1st Missouri Light Artillery: Lt Gustavus Schueler

   Col Luther P. Bradley
   Col Nathan H. Walworth

• 22nd Illinois: Ltc Francis Swanwick
• 27th Illinois: Col Jonathan R. Miles
• 42nd Illinois: Col Nathan H. Walworth, Ltc John A. Hottenstein
• 51st Illinois: Ltc Samuel B. Raymond
• Battery C, 1st Illinois Light Artillery: Cpt Mark H. Prescott

First Division
      BG Thomas J. Wood

   Col George P. Buell

• 100th Illinois: Col Frederick A. Bartleson, Maj Charles M. Hammond
• 58th Indiana: Ltc James T. Embree
• 13th Michigan: Col Joshua B. Culver, Maj Willard G. Eaton
• 26th Ohio: Ltc William H. Young

   BG George D. Wagner

• 15th Indiana: Col Gustavus A. Wood
• 40th Indiana: Col John W. Blake
• 57th Indiana: Ltc George W. Lennard
• 97th Ohio: Ltc Milton Barnes

   Col Charles G. Harker

• 3rd Kentucky: Col Henry C. Dunlap
• 64th Ohio: Col Alexander McIlvain
• 65th Ohio: Ltc Horatio N. Whitbeck, Maj Samuel C. Brown, Cpt Thomas Powell
• 125th Ohio: Col Emerson Opdycke

• 8th Battery, Indiana Light: Cpt George Estep
• 10th Battery, Indiana Light: Lt William A. Naylor
• 6th Battery, Ohio Light: Cpt Cullen Bradley

Second Division
      MG John M. Palmer

   BG Charles Cruft

• 31st Indiana: Col John T. Smith
• 1st Kentucky: Ltc Alva R. Hadlock
• 2nd Kentucky: Col Thomas D. Sedgewick
• 90th Ohio: Col Charles H. Rippey

   BG William Babcock Hazen

• 9th Indiana: Col Isaac C. B. Suman
• 6th Kentucky: Col George T. Shackelford, Ltc Richard Rockingham, Maj Richard T. Whitaker
• 41st Ohio: Col Aquila Wiley
• 124th Ohio: Col Oliver H. Payne, Maj James B. Hampson

   Col William Grose

• 84th Illinois: Col Louis H. Waters
• 36th Indiana: Ltc Oliver H. P. Carey, Maj Gilbert Trusler
• 23rd Kentucky: Ltc James C. Foy
• 6th Ohio: Col Nicholas L. Anderson, Maj Samuel C. Erwin
• 24th Ohio: Col David J. Higgins

   Cpt William E. Standart

• Battery B, 1st Ohio Light: Lt Norman A. Baldwin
• Battery F, 1st Ohio Light: Lt Giles J. Cockerill
• Battery H, 4th United States: Lt Harry C. Cushing
• Battery M, 4th United States: Lt Francis L. D. Russell

• 110th Illinois (battalion): Cpt E. Hibbard Topping

Third Division
      BG Horatio P. Van Cleve

   BG Samuel Beatty

• 79th Indiana: Col Frederick Knefler
• 9th Kentucky: Col George H. Cram
• 17th Kentucky: Col Alexander M. Stout
• 19th Ohio: Ltc Henry G. Stratton

   Col George F. Dick

• 44th Indiana: Ltc Simeon C. Aldrich
• 86th Indiana: Maj Jacob C. Dick
• 13th Ohio: Ltc Elhannon M. Mast, Cpt Horatio G. Cosgrove
• 59th Ohio: Ltc Granville A. Frambes

   Col Sidney M. Barnes

• 35th Indiana: Maj John P. Dufficy
• 8th Kentucky: Ltc James D. Mayhew, Maj John S. Clark
• 21st Kentucky: Col S. Woodson Price
• 51st Ohio: Col Richard W. McClain, Ltc Charles H. Wood
• 99th Ohio: Col Peter T. Swaine

• 7th Battery, Indiana Light: Cpt George R. Swallow
• 26th Battery, Pennsylvania Light: Cpt Alanson J. Stevens, Lt Samuel M. McDowell
• 3d Battery, Wisconsin Light: Lt Cortland Livingston

First division
      BG James B. Steedman

   BG Walter C. Whitaker

• 96th Illinois: Col Thomas E. Champion
• 115th Illinois: Col Jesse H. Moore
• 84th Indiana: Col Nelson Trusler
• 22nd Michigan: Col Heber Le Favour, Ltc William Sanborn, Cpt Alonzo M. Keeler
• 40th Ohio: Ltc William Jones
• 89th Ohio: Col Caleb H. Carlton, Cpt Isaac C. Nelson
• 18th Battery, Ohio Light Artillery: Cpt Charles C. Aleshire

   Col John G. Mitchell

• 78th Illinois: Ltc Carter Van Vleck, Lt George Green
• 98th Ohio: Cpt Moses J. Urquhart, Cpt Armstrong J. Thomas
• 113th Ohio: Ltc Darius B. Warner
• 121st Ohio: Ltc Henry B. Banning
• Battery M, 1st Illinois Light Artillery: Lt Thomas Burton

Second Division

      Col Daniel McCook, Jr.

• 85th Illinois: Col Caleb J. Dilworth
• 86th Illinois: Ltc David W. Magee
• 125th Illinois: Col Oscar F. Harmon
• 52nd Ohio: Maj James T. Holmes
• 69th Ohio: Ltc Joseph H. Brigham
• Battery I, 2nd Illinois Light Artillery: Cpt Charles M. Barnett

First Division
      Col Edward M. McCook

   Col Archibald P. Campbell

• 2nd Michigan: Maj Leonidas S. Scranton
• 9th Pennsylvania: Ltc Roswell M. Russell
• 1st Tennessee: Ltc James P. Brownlow

   Col Daniel M. Ray

• 2nd Indiana: Maj Joseph B. Presdee
• 4th Indiana: Ltc John T. Deweese
• 2nd Tennessee: Ltc William R. Cook
• 1st Wisconsin: Col Oscar H. LaGrange
• Battery D, 1st Ohio Light Artillery (section): Lt Nathaniel M. Newell

   Col Louis D. Watkins

• 4th Kentucky: Col Wickliffe Cooper
• 5th Kentucky: Ltc William T. Hoblitzell
• 6th Kentucky: Maj Louis A. Gratz

Second Division
      BG George Crook

   Col Robert H. G. Minty

• 3rd Indiana (battalion): Ltc Robert Klein
• 4th Michigan: Maj Horace Gray
• 7th Pennsylvania: Ltc James J. Seibert
• 4th United States: Cpt James B. Mcintyre

   Col Eli Long

• 2nd Kentucky: Col Thomas P. Nicholas
• 1st Ohio: Ltc Valentine Cupp, Maj Thomas J. Patten
• 3d Ohio: Ltc Charles B. Seidel
• 4th Ohio: Ltc Oliver P. Robie

• Chicago (Illinois) Board of Trade Battery: Cpt James H. Stokes