Battle of Chickamauga, Georgia

The Battle of Chickamauga, Georgia, fought from September 19-September 20, 1863, marked the end of a Union offensive in southeastern Tennessee and northwestern Georgia. It was the first major battle of the war fought in Georgia, the most significant Union defeat in the Western Theater, and involved the second-highest number of casualties after the Battle of Gettysburg. 
* Dates range anywhere from September 18-21, 1863
== Sub-Operations ==
* This action is the final act of The Chickamauga Campaign August 16-September 22, 1863
== Union Order of Battle ==
Army of the Cumberland
* William Rosecrans, Major General, Commanding
 
 
 General Staff
GENERAL STAFF
Chief of Staff: James A. Garfield, Brigadier General
* James Barnett, Colonel, Chief of Artillery
* William Truesdale, Colonel
* John P. Sanderson, ADC, Colonel
* Joseph C. McKibbin, ADC, Colonel
* Calvin Goddard, Adjutant General, Lieutenant Colonel
* Arthur C. Ducat, Inspector General, Lieutenant Colonel
* Henry C. Hodges, Quartermaster General, Lieutenant Colonel
* Samuel Simmons, Commissary of Subsistence, Lieutenant Colonel
* William M. Wiles, Provost Marshal General, Lieutenant Colonel
* William M. McMichael, Adjutant General, Major
* Frank S. Bond, ADC, Major
* Horace Porter, Chief of Ordnance, Captain
* Andrew S. Burt, Acting Inspector General, Captain
* Hunter Brooke, Acting Judge Advocate General, Captain
* William E. Merrill, Topographical Engineer, Captain
* William C. Margedant, Topographical Engineer, Captain
* Jesse Merrill, Signal Officer, Captain
* John C. Van Duzer, Telegraph, Captain
* R.S. Thomas, ADC, Captain
* James P. Drouillard, ADC, Captain
* Charles R. Thompson, ADC, Captain
* William Farrar, ADC, Captain
* M.J. Kelly, Chief of Couriers, Lieutenant
* George Burroughs, Engineer, Lieutenant
* William L. Porter, Acting ADC, Lieutenant
* James K. Reynolds, Acting ADC, Lieutenant
* Glover Perin, Surgeon
* Henry H. Seys, Surgeon
* D. Bache, Assistant Surgeon
* Jeremiah F. Trecy, Chaplain
GENERAL HEADQUARTERS
* 1st Ohio Sharpshooter Battalion - Gershom M. Barber, Captain
* (II) 10th Ohio Infantry - William M. Ward, Lieutenant Colonel
* 15th Pennsylvania Cavalry - William J. Palmer, Colonel
PIONEER BRIGADE
* James St. Clair Morton, Chief Engineer
** 1st Pioneer Battalion
** 2nd Pioneer Battalion
** 3rd Pioneer Battalion
 
 
 14th Corps
* George Henry Thomas, Major General
HEADQUARTERS
* PROVOST GUARD: 9th Michigan InfantryWikipedia, not referenced in Dyer - John Gibson Parkhurst, Colonel
* ESCORT: 1st Ohio Cavalry / Company LWikipedia, not referenced in Dyer - John D. Barker, Captain
Division 	Brigade 	Regiments andSmaller Units
1st DivisionAbsalom Baird, Brigadier General 	1st BrigadeBenjamin F. Scribner, Colonel 	
* 38th Indiana InfantryNot referenced in Dyer but listed on unit homepageDaniel F. Griffin, Lieutenant Colonel
* (II) 2nd Ohio InfantryObadiah C. Maxwell, Lieutenant ColonelWilliam T. Beatty, MajorJames Warnock, Captain
* 33rd Ohio InfantryOscar F. Moore, Colonel
* 94th Ohio InfantryRue P. Hutchins, Major
* 10th Wisconsin InfantryJohn H. Ely, Lieutenant ColonelJacob W. Roby, Captain
1st DivisionAbsalom Baird, Brigadier General 	2nd BrigadeJohn C. Starkweather, Brigadier General 	
* 24th Illinois InfantryGeza Mihalotzy, ColonelAugust Mauff, Captain
* 79th Pennsylvania InfantryHenry A. Hambright, Colonel
* (II) 1st Wisconsin InfantryGeorge B. Bingham, Lieutenant Colonel
* 21st Wisconsin InfantryHarrison C. Hobart, Lieutenant ColonelCharles H. Walker, Captain
1st DivisionAbsalom Baird, Brigadier General 	3rd BrigadeJohn H. King, Brigadier General 	
* 15th United States Infantry / 1st BattalionAlbert B. Dod, Captain
* 16th United States Infantry / 1st BattalionOn September 20 the remnants of this battalion, 35 men, served attached to the 19th U.S. Infantry.Sidney Coolidge, MajorRobert E.A. Crofton, Captain
* 18th United States Infantry / 1st BattalionGeorge W. Smith, Captain
* 18th United States Infantry / 2nd BattalionHenry Haymond, Captain
* 19th United States Infantry / 1st BattalionSamuel K. Dawson, Lieutenant ColonelEdmund L. Smith, Captain
1st DivisionAbsalom Baird, Brigadier General 	Artillery 	
* 4th Indiana (Independent) Light Artillery BatteryDavid Flansburg, LieutenantHenry J. Willits, Lieutenant
* 1st Michigan Light Artillery / Battery AGeorge W. Van Pelt, Lieutenant Almerick W. Wilbur, Lieutenant
* 5th United States Artillery / Battery HHoward Mather Burnham, LieutenantJoshua A. Fessenden, Lieutenant
2nd DivisionJames S. Negley, Major General 	1st BrigadeJohn Beatty, Brigadier General 	
* 104th Illinois InfantryDouglas Hapeman, Lieutenant Colonel
* 42nd Indiana InfantryWilliam T.B. McIntire, Lieutenant Colonel
* 88th Indiana InfantryGeorge Humphrey, Colonel
* 15th Kentucky Infantry (U)Marion C. Taylor, Colonel
2nd DivisionJames S. Negley, Major General 	2nd BrigadeTimothy Robbins Stanley, ColonelWilliam L. Stoughton, Colonel	
* 19th Illinois InfantryAlexander W. Raffen, Lieutenant Colonel
* (I) 11th Michigan InfantryWilliam L. Stoughton, ColonelMelvin Mudge, Lieutenant Colonel
* (II) 18th Ohio InfantryCharles H. Grosvenor, Lieutenant Colonel
2nd DivisionJames S. Negley, Major General 	3rd BrigadeWilliam Sirwell, Colonel 	
* 37th Indiana InfantryWilliam D. Ward, Lieutenant Colonel
* (II) 21st Ohio InfantryDwella M. Stoughton, Lieutenant ColonelArnold McMahan, MajorCharles H. Vantine, Captain
* 74th Ohio InfantryJoseph Fisher, Captain
* 78th Pennsylvania InfantryArchibald Blakeley, Lieutenant Colonel
2nd DivisionJames S. Negley, Major General 	Artillery 	
* Bridge's (Independent) Light Artillery BatteryLyman Bridges, Captain
* 1st Ohio Light Artillery / Battery GAlexander Marshall, Captain
* 1st Ohio Light Artillery / Battery MFrederick Schultz, Captain
3rd DivisionJohn Milton Brannan, Brigadier General	1st BrigadeJohn M. Connell, Colonel 	
* 82nd Indiana InfantryMorton C. Hunter, Colonel
* (II) 17th Ohio InfantryDurbin Ward, Lieutenant Colonel
* 31st Ohio InfantryFrederick W. Lister, Lieutenant Colonel
* 38th Ohio InfantryNot engaged; train guard - WikipediaEdward H. Phelps, Colonel
3rd DivisionJohn Milton Brannan, Brigadier General	2nd BrigadeJohn T. Croxton, ColonelWilliam H. Hays, Colonel 	
* (II) 10th Indiana InfantryWilliam B. Carroll, ColonelMarsh B. Taylor, Lieutenant Colonel
* 74th Indiana InfantryCharles W. Chapman, Colonel
* 4th Kentucky Infantry (U)P. Burgess Hunt, Lieutenant ColonelRobert M. Kelly, Major
* 10th Kentucky Infantry (U)William H. Hays, ColonelGabriel C. Wharton, Lieutenant Colonel
* (II) 14th Ohio InfantryHenry D. Kingsbury, Lieutenant Colonel
3rd DivisionJohn Milton Brannan, Brigadier General	3rd BrigadeFerdinand Van Derveer 	
* 87th Indiana InfantryNewell Gleason, Colonel
* 2nd Minnesota InfantryJames George, Colonel
* (II) 9th Ohio InfantryGustave Kammerling, Colonel
* 35th Ohio InfantryHenry Van Ness Boynton, Lieutenant Colonel
3rd DivisionJohn Milton Brannan, Brigadier General	Artillery 	
* 1st Missouri Light Artillery / Battery G (U)Wikipedia, not referenced in DyerJosiah W. Church, Captain
* 1st Ohio Light Artillery / Battery CMarco B. Gary, Lieutenant
* 4th United States Artillery / Battery IFrank G. Smith, Lieutenant
4th DivisionJoseph J. Reynolds, Major General 	1st BrigadeDetached from its division and serving as mounted infantry.
John T. Wilder, Colonel	
* 92nd Illinois InfantrySmith D. Atkins, Colonel
* 98th Illinois InfantryJohn J. Funkhouser, ColonelEdward Kitchell, Lieutenant Colonel
* 123rd Illinois InfantryJames Monroe, Colonel
* 17th Indiana InfantryWilliam T. Jones, Major
* 72nd Indiana InfantryAbram O. Miller, Colonel
4th DivisionJoseph J. Reynolds, Major General 	2nd BrigadeEdward A. King, ColonelMilton S. Robinson, Colonel 	
* 68th Indiana InfantryHarvey J. Espy, Captain
* 75th Indiana InfantryMilton S. Robinson, ColonelWilliam O'Brien, Lieutenant Colonel
* 101st Indiana InfantryThomas Doan, Lieutenant Colonel
* 105th Ohio InfantryGeorge T. Perkins, Major
4th DivisionJoseph J. Reynolds, Major General 	3rd BrigadeJohn B. Turchin, Brigadier General 	
* 18th Kentucky Infantry (U)Hubbard K. Milward, Lieutenant ColonelJohn B. Heltemes, Captain
* (II) 11th Ohio InfantryPhilander P. Lane, Colonel
* 36th Ohio InfantryWilliam G. Jones, ColonelHiram F. Devol, Lieutenant Colonel
* 92nd Ohio InfantryBenjamin D. Fearing, ColonelDouglas Putnam (Jr.), Lieutenant Colonel
4th DivisionJoseph J. Reynolds, Major General 	Artillery 	
* 18th Indiana (Independent) Light Artillery BatteryEli Lilly, Captain
* 19th Indiana (Independent) Light Artillery BatterySamuel J. Harris, CaptainRobert S. Lackey, Lieutenant
* 21st Indiana (Independent) Light Artillery BatteryWilliam W. Andrew, Captain
 
 
 20th Corps
* Alexander McDowell McCook, Major General
HEADQUARTERS
* PROVOST GUARD: 81st Indiana Infantry / Company HWilliam J. Richards, Captain
* ESCORT: 2nd Kentucky Cavalry (U) / Company IGeorge W. L. Batman, Lieutenant
Division 	Brigade 	Regiments andSmaller Units
1st DivisionJefferson C. Davis, Brigadier General	1st BrigadeNot engaged; guarding supply train (none of these units listed in Dyer except the WI artillery battery) - WikipediaP. Sidney Post, Colonel	
* 59th Illinois InfantryJoshua C. Winters, Lieutenant Colonel
* 74th Illinois InfantryJason Marsh, Colonel
* 75th Illinois InfantryJohn E. Bennett, Colonel
* 22nd Indiana InfantryMichael Gooding, Colonel
* 5th Wisconsin (Independent) Light Artillery BatteryGeorge Q. Gardner, Captain
1st DivisionJefferson C. Davis, Brigadier General	2nd BrigadeWilliam P. Carlin, Brigadier General 	
* 21st Illinois InfantryJohn W. S. Alexander, ColonelChester K. Knight, Captain
* 38th Illinois InfantryDaniel H. Gilmer, Lieutenant ColonelWillis G. Whitehurst, Captain
* 81st Indiana InfantryNevil B. Boone, CaptainJames E. Calloway, Major
* 101st Ohio InfantryJohn Messer, Lieutenant ColonelBedan B. McDonald, MajorLeonard D. Smith, Captain
* 2nd Minnesota (Independent) Light Artillery BatteryAlbert Woodbury, LieutenantRichard L. Dawley, Lieutenant
1st DivisionJefferson C. Davis, Brigadier General	3rd BrigadeHans C. Heg, ColonelJohn A. Martin, Colonel 	
* 25th Illinois InfantrySamuel D. Wall, MajorWesford Taggart, Captain
* 35th Illinois InfantryWilliam P. Chandler, Lieutenant Colonel
* 8th Kansas InfantryJohn Alexander Martin, ColonelJames L. Abernathy, Lieutenant Colonel
* 15th Wisconsin InfantryOle C. Johnson, Lieutenant Colonel
* 8th Wisconsin (Independent) Light Artillery BatteryJohn D. McLean, Lieutenant
2nd DivisionRichard W. Johnson, Brigadier General	1st Brigade(The Horn Brigade)August Willich, Brigadier General 	
* 89th Illinois InfantryDuncan J. Hall, Lieutenant ColonelWilliam D. Williams, Major
* 32nd Indiana InfantryFrank Erdelmeyer, Lieutenant Colonel
* 39th Indiana InfantryWikipedia - Detached from its brigade and serving as mounted infantry (not referenced in Dyer)Thomas J. Harrison, Colonel
* (II) 15th Ohio InfantryFrank Askew, Lieutenant Colonel
* 49th Ohio InfantrySamuel F. Gray, MajorLuther M. Strong, Captain
* 1st Ohio Light Artillery / Battery AWilbur F. Goodspeed, Captain
2nd DivisionRichard W. Johnson, Brigadier General	2nd BrigadeJoseph B. Dodge, Colonel 	
* 79th Illinois InfantryAllen Buckner, Colonel
* 29th Indiana InfantryDavid M. Dunn, Lieutenant Colonel
* 30th Indiana InfantryOrrin D. Hurd, Lieutenant Colonel
* 77th Pennsylvania InfantryThomas E. Rose, ColonelJoseph J. Lawson, Captain
* 20th Ohio (Independent) Light Artillery BatteryJohn F. Edward Grosskopff, Captain
2nd DivisionRichard W. Johnson, Brigadier General	3rd BrigadePhilemon P. Baldwin, ColonelWilliam W. Berry, Colonel 	
* (II) 6th Indiana InfantryHagerman Tripp, Lieutenant ColonelCalvin D. Campbell, Major
* 5th Kentucky Infantry (U)William W. Berry, Lieutenant ColonelJohn M. Huston, Captain
* (II) 1st Ohio InfantryBassett Langdon, Lieutenant Colonel
* 93rd Ohio InfantryHiram Strong, ColonelWilliam H. Martin, Lieutenant Colonel
* 5th Indiana (Independent) Light Artillery BatteryPeter Simonson, Captain
3rd DivisionPhilip Sheridan, Major General 	1st BrigadeWilliam Haines Lytle, Brigadier GeneralSilas Miller, Colonel 	
* 36th Illinois InfantrySilas Miller, ColonelPorter C. Olson, Lieutenant Colonel
* 88th Illinois InfantryAlexander S. Chadbourne, Lieutenant Colonel
* 21st Michigan InfantryWilliam B. McCreery, ColonelSeymour Chase, Major
* 24th Wisconsin InfantryTheodore S. West, Lieutenant ColonelCarl von Baumbach, Major
* 11th Indiana (Independent) Light Artillery BatteryArnold Sutermeister, Captain
3rd DivisionPhilip Sheridan, Major General 	2nd BrigadeBernard Laiboldt, Colonel 	
* 44th Illinois InfantryWallace W. Barrett, Colonel
* 73rd Illinois InfantryJames F. Jaquess, Colonel
* (II) 2nd Missouri Infantry (U)Arnold Beck, Major
* 15th Missouri Infantry (U)Joseph Conrad, Colonel
* 1st Missouri Light Artillery / Battery G (U)Gustavus Schueler, Lieutenant
3rd DivisionPhilip Sheridan, Major General 	3rd BrigadeLuther Prentice Bradley, ColonelNathan H. Walworth, Colonel'' 	
* 22nd Illinois InfantryFrancis Swanwick, Lieutenant Colonel
* 27th Illinois InfantryJonathan R. Miles, Colonel
* 42nd Illinois InfantryNathan H. Walworth, ColonelJohn A. Hottenstein, Lieutenant Colonel
* 51st Illinois InfantrySamuel B. Raymond, Lieutenant Colonel
* 1st Illinois Light Artillery / Battery CMark H. Prescott, Captain
 
 
 21st Corps
* Thomas Leonidas Crittenden, Major General
Headquarters
* Escort: 15th Illinois Cavalry / Company KSamuel B. Sherer, Captain
Division 	Brigade 	Regiments andSmaller Units
1st DivisionThomas J. Wood, Brigadier General 	1st BrigadeGeorge P. Buell, Colonel 	
* 100th Illinois InfantryFrederick A. Bartleson, ColonelCharles M. Hammond, Major''
* 58th Indiana InfantryJames T. Embree, Lieutenant Colonel
* 13th Michigan InfantryJoshua B. Culver, ColonelWillard G. Eaton, Major''
* 26th Ohio InfantryWilliam H. Young, Lieutenant Colonel
1st DivisionThomas J. Wood, Brigadier General 	2nd BrigadeWikipedia - Not engaged, detached to Chattanooga.George D. Wagner, Brigadier General	
* 15th Indiana InfantryGustavus A. Wood, Colonel
* 40th Indiana InfantryJohn W. Blake, Colonel
* 57th Indiana InfantryGeorge W. Lennard, Lieutenant Colonel
* 97th Ohio InfantryMilton Barnes, Lieutenant Colonel
1st DivisionThomas J. Wood, Brigadier General 	3rd BrigadeCharles G. Harker, Colonel 	
* 3rd Kentucky Infantry (U)Henry C. Dunlap, Colonel
* 64th Ohio InfantryAlexander McIlvaine, Colonel
* 65th Ohio InfantryHoratio N. Whitbeck, Lieutenant ColonelSamuel C. Brown, MajorThomas Powell, Captain''
* 125th Ohio InfantryEmerson Opdycke, Colonel
1st DivisionThomas J. Wood, Brigadier General 	Artillery 	
* 8th Indiana (Independent) Light Artillery BatteryGeorge Estep, Captain
* 10th Indiana (Independent) Light Artillery BatteryWikipedia - Stationed at Chattanooga, and not engaged.William A. Naylor, Lieutenant
* 6th Ohio (Independent) Light Artillery BatteryCullen Bradley, Captain
2nd DivisionJohn M. Palmer, Major General 	1st BrigadeCharles Cruft, Brigadier General 	
* 31st Indiana InfantryJohn T. Smith, Colonel
* 1st Kentucky Infantry (U)Wikipedia - Five companies detached as wagon guard.Alva R. Hadlock, Lieutenant Colonel
* 2nd Kentucky Infantry (U)'Thomas D. Sedgewick, Colonel
* 90th Ohio Infantry'Charles H. Rippey, Colonel
2nd DivisionJohn M. Palmer, Major General 	2nd BrigadeWilliam Babcock Hazen, Brigadier General 	
* (II) 9th Indiana InfantryIsaac C. B. Suman, Colonel
* 6th Kentucky Infantry (U)George T. Shackelford, ColonelRichard Rockingham, Lieutenant ColonelRichard T. Whitaker, Major
* 41st Ohio InfantryAquila Wiley, Colonel
* 124th Ohio InfantryOliver Hazard Payne, ColonelJames B. Hampson, Major
2nd DivisionJohn M. Palmer, Major General 	3rd BrigadeWilliam Grose, Colonel 	
* 84th Illinois InfantryLouis H. Waters, Colonel
* 36th Indiana InfantryOliver H. P. Carey, Lieutenant ColonelGilbert Trusler, Major
* 23rd Kentucky Infantry (U)James C. Foy, Lieutenant Colonel
* (II) 6th Ohio InfantryNicholas Longworth Anderson, ColonelSamuel C. Erwin, Major
* 24th Ohio InfantryDavid J. Higgins, Colonel
2nd DivisionJohn M. Palmer, Major General 	ArtilleryWilliam E. Standart, Captain 	
* 1st Ohio Light Artillery / Battery BNorman A. Baldwin, Lieutenant
* 1st Ohio Light Artillery / Battery FGiles J. Cockerill, Lieutenant
* 4th United States Artillery / Battery HHarry C. Cushing, Lieutenant
* 4th United States Artillery / Battery MFrancis L. D. Russell, Lieutenant
2nd DivisionJohn M. Palmer, Major General 	Unattached 	
* 110th Illinois Infantry (battalion)Not engaged.Ebenezer Hibbard Topping, Lieutenant Colonel
3rd DivisionHoratio P. Van Cleve, Brigadier General	1st BrigadeSamuel Beatty, Brigadier General 	
* 79th Indiana InfantryFrederick Knefler, Colonel
* 9th Kentucky Infantry (U)George H. Cram, Colonel
* 17th Kentucky Infantry (U)Alexander M. Stout, Colonel
* (II) 19th Ohio InfantryHenry G. Stratton, Lieutenant Colonel
3rd DivisionHoratio P. Van Cleve, Brigadier General	2nd BrigadeGeorge F. Dick, Colonel 	
* 44th Indiana InfantrySimeon C. Aldrich, Lieutenant Colonel
* 86th Indiana InfantryJacob C. Dick, Major
* (II) 13th Ohio InfantryElhannon M. Mast, Lieutenant ColonelHoratio G. Cosgrove, Captain
* 59th Ohio InfantryGranville A. Frambes, Lieutenant Colonel
3rd DivisionHoratio P. Van Cleve, Brigadier General	3rd BrigadeSidney M. Barnes, Colonel 	
* 35th Indiana InfantryJohn P. Dufficy, Major
* 8th Kentucky Infantry (U)James D. Mayhew, Lieutenant ColonelJohn S. Clark, Major
* 21st Kentucky Infantry (U)Wikipedia - Stationed at Whiteside's, and not engaged.Samuel Woodson Price, Colonel
* 51st Ohio InfantryRichard W. McClain, ColonelCharles H. Wood, Lieutenant Colonel
* 99th Ohio InfantryPeter T. Swaine, Colonel
3rd DivisionHoratio P. Van Cleve, Brigadier General	Artillery 	
* 7th Indiana (Independent) Light Artillery BatteryGeorge R. Swallow, Captain
* Pennsylvania (Independent) Light Artillery / Battery BAlanson J. Stevens, CaptainSamuel M. McDowell, Lieutenant
* 3rd Wisconsin (Independent) Light Artillery BatteryCortland Livingston, Lieutenant
 
 
 Reserve Corps
* Gordon Granger, Major General
Division 	Brigade 	Regiments andSmaller Units
1st DivisionJames B. Steedman, Brigadier General	1st BrigadeWalter C. Whitaker, Brigadier General	
* 96th Illinois InfantryThomas E. Champion, Colonel
* 115th Illinois InfantryNot referenced in Dyer summary but listed on unit homepageJesse Hale Moore, Colonel
* 84th Indiana InfantryNelson Trusler, Colonel
* 22nd Michigan InfantryHeber Le Favour, ColonelWilliam Sanborn, Lieutenant ColonelAlonzo M. Keeler, Captain
* 40th Ohio InfantryWilliam Jones, Lieutenant Colonel
* 89th Ohio InfantryCaleb H. Carlton, ColonelIsaac C. Nelson, Captain
* 18th Ohio (Independent) Light Artillery BatteryCharles C. Aleshire, Captain
1st DivisionJames B. Steedman, Brigadier General	2nd BrigadeJohn G. Mitchell, Colonel 	
* 78th Illinois InfantryCarter Van Vleck, Lieutenant ColonelGeorge Green, Lieutenant
* 98th Ohio InfantryMoses J. Urquhart, CaptainArmstrong J. Thomas, Captain
* 113th Ohio InfantryDarius B. Warner, Lieutenant Colonel
* 121st Ohio InfantryHenry B. Banning, Lieutenant Colonel
* 1st Illinois Light Artillery / Battery MThomas Burton, Lieutenant
2nd Division 	2nd BrigadeDaniel McCook, Jr., Colonel 	
* 85th Illinois InfantryCaleb J. Dilworth, Colonel
* 86th Illinois InfantryDavid W. Magee, Lieutenant Colonel
* 125th Illinois InfantryOscar F. Harmon, Colonel
* 52nd Ohio InfantryJames T. Holmes, Major
* 69th Ohio InfantryTemporarily attached.Joseph H. Brigham, Lieutenant Colonel
* 2nd Illinois Light Artillery / Battery ICharles M. Barnett, Captain
 
 
 Cavalry Corps
* Robert B. Mitchell, Brigadier General
Division 	Brigade 	Regiments andSmaller Units
1st DivisionEdward M. McCook, Colonel 	1st BrigadeArchibald P. Campbell, Colonel	
* 2nd Michigan CavalryLeonidas S. Scranton, Major
* 9th Pennsylvania CavalryRoswell M. Russell, Lieutenant Colonel
* 1st Tennessee Cavalry (U)James Patton Brownlow, Lieutenant Colonel
1st DivisionEdward M. McCook, Colonel 	2nd BrigadeDaniel M. Ray, Colonel 	
* 2nd Indiana CavalryJoseph B. Presdee, Major
* 4th Indiana CavalryJohn T. Deweese, Lieutenant Colonel
* 2nd Tennessee Cavalry (U)William R. Cook, Lieutenant Colonel
* 1st Wisconsin CavalryOscar Hugh La Grange, Colonel
* 1st Ohio Light Artillery / Battery D (1 section)Nathaniel M. Newell, Lieutenant
1st DivisionEdward M. McCook, Colonel 	3rd BrigadeLouis D. Watkins, Colonel 	
* 4th Kentucky Cavalry (U)Wickliffe Cooper, Colonel
* 5th Kentucky Cavalry (U)William T. Hoblitzell, Lieutenant Colonel
* 6th Kentucky Cavalry (U)Louis A. Gratz, Major
2nd DivisionGeorge Crook, Brigadier General	1st BrigadeRobert H. G. Minty, Colonel 	
* 3rd Indiana Cavalry (Left Wing) (detachment)Robert Klein, Lieutenant Colonel
* 4th Michigan CavalryHorace Gray, Major
* 7th Pennsylvania CavalryJames J. Seibert, Lieutenant Colonel
* 4th United States CavalryJames B. Mcintyre, Captain
2nd DivisionGeorge Crook, Brigadier General	2nd BrigadeEli Long, Colonel 	
* 2nd Kentucky CavalryWikipedia - not referenced in DyerThomas P. Nicholas, Colonel
* 1st Ohio CavalryValentine Cupp, Lieutenant ColonelThomas J. Patten, Major
* 3rd Ohio CavalryCharles B. Seidel, Lieutenant Colonel
* 4th Ohio CavalryOliver P. Robie, Lieutenant Colonel
2nd DivisionGeorge Crook, Brigadier General	Artillery 	
* Chicago Board of Trade (Independent) Light Artillery BatteryJames H. Stokes, Captain
 
 
 Other
Other troops listed in Dyer but not in Wikipedia order of battle
* 7th Illinois Cavalry
* 8th Indiana Cavalry
* 1st Michigan Light Artillery / Battery D
* 9th Michigan Infantry
* 10th Ohio CavalryNot originally referenced on Dyer summary, but referenced on unit homepage
</div>
== Confederate Order of Battle == 
* https://en.wikipedia.org/wiki/Chickamauga_Confederate_order_of_battle
== Casualties ==
* Union: 1,656 killed, 9,749 wounded, 4,774 missing = Total, 16,179
== Notes == 
== Sources ==
* (Pages 606, 697, 701)
* Wikipedia - Battle of Chickamauga
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