Organization of the Army of the Cumberland, commanded by Maj. Gen. William S. Rosecrans at the Battle of Chickamauga, Georgia, 19-20 September 1863.

General Headquarters

1st Battalion Ohio Sharpshooters, Capt. Gershom M. Barber

10th Ohio Infantry, Lt. Col. William M. Ward

15th Pennsylvania Cavalry, Col. William J. Palmer

XIV ARMY CORPS

Maj. Gen. George H. Thomas

General Headquarters

Provost Guard

9th Michigan Infantry, Col. John G. Parkhurst (Not engaged;

guarding trains and performing provost duty)

Escort

1st Ohio Cavalry, Company L, Capt. John D. Barker

1ST DIVISION

Brig. Gen. Absalom Baird

1st Brigade

Col. Benjamin F. Scribner

38th Indiana, Lt. Col. Daniel F. Griffin

2d Ohio, Lt. Col. Obadiah C. Maxwell, Maj. William T. Beatty, Capt James Warnock

33d Ohio, Col. Oscar F. Moore

94th Ohio, Maj. Rue P. Hutchins

10th Wisconsin, Lt. Col. John H. Ely, Capt. Jacob W. Roby

2d Brigade

Brig. Gen. John C. Starkweather

24th Illinois, Col. Geza Mihalotzy, Capt. August Mauff

79th Pennsylvania, Col. Henry A. Hambright

1st Wisconsin, Lt. Col. George B. Bingham

21st Wisconsin, Lt. Col. Harrison C. Hobart, Capt. Charles H. Walker

3d Brigade

Brig. Gen. John H. King

15th United States, 1st Battalion, Capt. Albert B. Dod

16th United States, 1st Battalion, Maj. Sidney Coolidge, Capt. R. E. A. Crofton

18th United States, 1st Battalion, Capt. George W. Smith

18th United States, 2d Battalion, Capt. Henry Haymond

19th United States, 1st Battalion, Maj. Samuel K. Dawson, Capt. Edmund L. Smith

Artillery

Indiana Light, 4th Battery (2d Brigade), Lt. David Flansburg, Lt. Henry J. Willits

1st Michigan Light, Battery A (1st Brigade), Lt. George W. Van Pelt, Lt. Almerick W. Wilbur

5th United States, Battery H (3d Brigade), Lt. Howard M. Burnham, Lt. Joshua A. Fessenden

2D DIVISION

Maj. Gen. James S. Negley

1st Brigade

Brig. Gen. John Beatty

104th Illinois, Lt. Col. Douglas Hapeman

42d Indiana, Lt. Col. William T. B. McIntire

88th Indiana, Col. George Humphrey

15th Kentucky, Col. Marion C. Taylor

2d Brigade

Col. Timothy R. Stanley

Col. William L. Stoughton

19th Illinois, Lt. Col. Alexander W. Raffen

11th Michigan, Col. William L. Stoughton, Lt. Col. Melvin Mudge

18th Ohio, Lt. Col. Charles H. Grosvenor

3d Brigade

Col. William Sirwell

37th Indiana, Lt. Col. William D. Ward

21st Ohio, Lt. Col. Dwells M. Stoughton, Maj. Arnold McMahan, Capt. Charles H. Vantine

74th Ohio, Capt. Joseph Fisher

78th Pennsylvania, Lt. Col. Archibald Blakeley

Artillery

Illinois Light, Bridges' Battery (1st Brigade), Capt. Lyman Bridges

1st Ohio Light, Battery G (3d Brigade), Capt. Alexander Marshall

1st Ohio Light, Battery M (2d Brigade), Capt, Frederick Schultz

3D DIVISION

Brig. Gen. John M. Brannan

1st Brigade

Col. John M. Connell

82d Indiana, Col. Morton C. Hunter

17th Ohio, Lt. Col. Durbin Ward

31st Ohio, Lt. Col. Frederick W. Lister

38th Ohio, Col. Edward H. Phelps (Not engaged; train guard)

2d Brigade

Col. John T. Croxton

Col. William H. Hays

10th Indiana, Col. William B. Carroll, Lt. Col, Marsh B. Taylor

74th Indiana, Col. Charles W. Chapman, Lt. Col. Myron Baker

4th Kentucky, Lt. Col. P. Burgess Hunt, Maj. Robert M. Kelly

10th Kentucky, Col. William H. Hays, Lt. Col. Gabriel C. Wharton

14th Ohio, Lt. Col. Henry D. Kingsbury

3d Brigade

Col. Ferdinand Van Derveer

87th Indiana, Col. Newell Gleason

2d Minnesota, Col. James George

9th Ohio, Col. Gustave Kammerling

35th Ohio, Lt. Col. Henry V. N. Boynton

Artillery

1st Michigan Light, Battery D (1st Brigade), Capt. Josiah W. Church

1st Ohio Light, Battery C (2d Brigade), Lt. Marco B. Gary

4th United States, Battery I (3d Brigade), Lt. Frank G. Smith

4TH DIVISION

Maj. Gen. Joseph J. Reynolds

1st Brigade

(Detached from its division and serving as mounted infantry.)

Col. John T. Wilder

92d Illinois, Col. Smith D. Atkins

98th Illinois, Col. John J. Funkhouser, Lt. Col. Edward Kitchell

123d Illinois, Col. James Monroe

17th Indiana, Maj. William T. Jones

72d Indiana, Col. Abram O. Miller

2d Brigade

Col. Edward A. King

Col. Milton S. Robinson

68th Indiana, Capt. Harvey J. Espy

75th Indiana, Col. Milton S. Robinson, Lt. Col. William O'Brien

101st Indiana, Lt. Col. Thomas Doan

105th Ohio, Maj. George T. Perkins

3d Brigade

Brig. Gen. John B. Turchin

18th Kentucky, Lt. Col. Hubbard K. Milward, Capt. John B. Heltemes

11th Ohio, Col. Philander P. Lane

36th Ohio, Col. William G. Jones, Lt. Col. Hiram F. Devol

92d Ohio, Col. Benjamin D. Fearing, Lt. Col. Douglas Putnam Jr.

Artillery

Indiana Light, 18th Battery (1st Brigade), Capt. Eli Lilly

Indiana Light, 19th Battery (2d Brigade), Capt, Samuel J. Harris, Lt. Robert S. Lackey

Indiana Light, 21st Battery (3d Brigade), Capt. William W. Andrew

XX ARMY CORPS

Maj. Gen. Alexander M. McCook

General Headquarters

Provost Guard

81st Indiana Infantry, Company H, Capt. William J. Richards

Escort

2d Kentucky Cavalry, Company I, Lt. George W. L. Batman

1ST DIVISION

Brig. Gen. Jefferson C. Davis

1st Brigade

(Not engaged; guarding supply train.)

Col. P. Sidney Post

59th Illinois, Lt. Col. Joshua C. Winters

74th Illinois, Col. Jason Marsh

75th Illinois, Col. John E. Bennett

22d Indiana, Col. Michael Gooding

Wisconsin Light Artillery, 5th Battery, Capt. George Q. Gardner

2d Brigade

Brig. Gen. William P. Carlin

21st Illinois, Col. John W. S. Alexander, Capt. Chester K. Knight

38th Illinois, Lt. Col. Daniel H. Gilmer, Capt. Willis G. Whitehurst

81st Indiana, Capt. Nevil B. Boone, Maj. James E. Calloway

101st Ohio, Lt. Col. John Messer, Maj. Bedan B. McDanald, Capt. Leonard D. Smith

Minnesota Light Artillery, 2d Battery (Capt. William A. Hotchkiss, chief of division artillery), Lt. Albert Woodbury, Lt. Richard L. Dawley

3d Brigade

Col. Hans C. Heg

Col. John A. Martin

25th Illinois, Maj. Samuel D. Wall, Capt. Wesford, Taggart

35th Illinois, Lt. Col. William P. Chandler

8th Kansas, Col. John A. Martin, Lt. Col, James L. Abernathy

15th Wisconsin, Lt. Col. Ole C. Johnson

Wisconsin Light Artillery, 8th Battery, Lt. John D. McLean

2D DIVISION

Brig. Gen. Richard W. Johnson

1st Brigade

Brig. Gen. August Willich

89th Illinois, Lt. Col. Duncan J. Hall, Maj. William D. Williams

32d Indiana, Lt. Col. Frank Erdelmeyer

39th Indiana (detached from its brigade and serving as mounted infantry), Col. Thomas J. Harrison

15th Ohio, Lt. Col. Frank Askew

49th Ohio, Maj. Samuel F. Gray, Capt, Luther M. Strong

1st Ohio Light Artillery, Battery A, Capt. Wilbur F. Goodspeed

2d Brigade

Col. Joseph B. Dodge

79th Illinois, Col. Allen Buckner

29th Indiana, Lt. Col. David M. Dunn

30th Indiana, Lt. Col. Orrin D. Hurd

77th Pennsylvania, Col. Thomas E. Rose, Capt. Joseph J. Lawson

Ohio Light Artillery, 20th Battery, Capt. Edward Grosskopff

3d Brigade

Col. Philemon P. Baldwin

Col. William W. Berry

6th Indiana, Lt. Col. Hagerman Tripp, Maj. Calvin D. Campbell

5th Kentucky, Col. William W. Berry, Capt. John M. Huston

1st Ohio, Lt. Col. Bassett Langdon

93d Ohio, Col. Hiram Strong, Lt. Col. William H. Martin

Indiana Light Artillery, 6th Battery, Capt. Peter Simonson

3D DIVISION

Maj. Gen. Philip H. Sheridan

1st Brigade

Brig. Gen. William H. Lytle

Col. Silas Miller

36th Illinois, Col. Silas Miller, Lt Col. Porter C. Olson

88th Illinois, Lt. Col, Alexander S. Chadbourne

21st Michigan, Col. William B. McCreery, Maj. Seymour Chase

24th Wisconsin, Lt. Col. Theodore S. West, Maj. Carl von Baumbach

Indiana Light Artillery, 11th Battery, Capt. Arnold Sutermeister

2d Brigade

Col. Bernard Laiboldt

44th Illinois, Col. Wallace W. Barrett

73d Illinois, Col. James F. Jaquess

2d Missouri, Maj. Arnold Beck

15th Missouri, Col. Joseph Conrad

1st Missouri Light Artillery, Battery G (Capt. Henry Hescock, chief of division artillery), Lt. Gustavus Schueler

3d Brigade

Col. Luther P. Bradley

Col. Nathan H. Walworth

22d Illinois, Lt. Col. Francis Swanwick

27th Illinois, Col. Jonathan R. Miles

42d Illinois, Col. Nathan H. Walworth, Lt. Col. John A. Hottenstein

51st Illinois, Lt. Col. Samuel B. Raymond

1st Illinois Light Artillery, Battery C, Capt. Mark H. Prescott

XXI ARMY CORPS

Maj. Gen. Thomas L. Crittenden

General Headquarters

Escort

15th Illinois Cavalry, Company K, Capt. Samuel B. Sherer

1ST DIVISION

Brig. Gen. Thomas J. Wood

1st Brigade

Col. George P. Buell

100th Illinois, Col. Frederick A. Bartleson, Maj. Charles M. Hammond

58th Indiana, Lt. Col. James T. Embree

13th Michigan, Col. Joshua B. Culver, Maj. Willard G. Eaton

26th Ohio, Lt. Col. William H. Young

2d Brigade

(Stationed at Chattanooga and not engaged.)

Brig. Gen. George D. Wagner

15th Indiana, Col. Gustavus A. Wood

40th Indiana, Col. John W. Blake

57th Indiana, Lt. Col. George W. Lennard

97th Ohio, Lt. Col. Milton Barnes

3d Brigade

Col. Charles G. Harker

3d Kentucky, Col. Henry C. Dunlap

64th Ohio, Col. Alexander McIlvain

65th Ohio, Lt. Col. Horatio N. Whitbeck, Maj. Samuel C. Brown, Capt. Thomas Powell

125th Ohio, Col. Emerson Opdycke

Artillery

Indiana Light, 8th Battery (1st Brigade), Capt. George Estep

Indiana Light, 10th Battery (2d Brigade) (stationed at Chattanooga and not engaged), Lt. William A. Naylor

Ohio Light, 6th Battery (3d Brigade), Capt. Cullen Bradley

2D DIVISION

Maj. Gen. John M. Palmer

1st Brigade

Brig. Gen. Charles Cruft

31st Indiana, Col. John T. Smith

1st Kentucky (five companies detached as wagon guard), Lt. Col. Alva R. Hadlock

2d Kentucky, Col. Thomas D. Sedgewick

90th Ohio, Col. Charles H. Rippey

2d Brigade

Brig. Gen. William B. Hazen

9th Indiana, Col. Isaac C. B. Suman

6th Kentucky, Col. George T. Shackelford, Lt. Col. Richard Rockingham, Maj. Richard T. Whitaker

41st Ohio, Col. Aquila Wiley

124th Ohio, Col. Oliver H. Payne, Maj. James B. Hampson

3d Brigade

Col. William Grose

84th Illinois, Col. Louis H. Waters

36th Indiana, Lt Col. Oliver H. P. Carey, Maj. Gilbert Trusler

23d Kentucky, Lt. Col. James C. Foy

6th Ohio, Col. Nicholas L. Anderson and Maj. Samuel C. Erwin

24th Ohio, Col. David J. Higgins

Artillery

Capt. William E. Standart

1st Ohio Light, Battery B (1st Brigade), Lt. Norman A. Baldwin

1st Ohio Light, Battery F (2d Brigade), Lt. Giles J. Cockerill

4th United States, Battery H (3d Brigade), Lt. Harry C. Cushing

4th United States, Battery M (3d Brigade), Lt. Francis L. D. Russell

Unattached

11th Illinois (battalion) (not engaged), Capt. E. Hibbard Topping

3D DIVISION

Brig, Gen. Horatio P. Van Cleve

1st Brigade

Brig. Gen. Samuel Beatty

79th Indiana, Col. Frederick Knefler

9th Kentucky, Col. George H. Cram

17th Kentucky, Col. Alexander M. Stout

19th Ohio, Lt. Col. Henry G. Stratton

2d Brigade

Col. George F. Dick

44th Indiana, Lt. Col. Simeon C. Aldrich

86th Indiana, Maj. Jacob C. Dick

13th Ohio, Lt. Col. Elhannon M. Mast, Capt. Horatio G. Cosgrove

59th Ohio, Lt. Col. Granville A. Frambes

3d Brigade

Col. Sidney M. Barnes

35th Indiana, Maj. John P. Dufficy

8th Kentucky, Lt. Col. James D. Mayhew, Maj. John S. Clark

21st Kentucky (stationed at Whiteside's and not engaged), Col. S. Woodson Price

51st Ohio, Col. Richard W. McClain, Lt. Col. Charles H. Wood

99th Ohio, Col. Peter T. Swaine

Artillery

Indiana Light, 7th Battery, Capt. George R. Swallow

Pennsylvania Light, 26th Battery, Capt. Alanson J. Stevens, Lt. Samuel M. McDowell

Wisconsin Light, 3d Battery, Lt. Cortland Livingston

RESERVE CORPS

Maj. Gen. Gordon Granger

1ST DIVISION

Brig. Gen. James B. Steedman

1st Brigade

Brig. Gen. Walter C. Whitaker

96th Illinois, Col. Thomas E. Champion

115th Illinois, Col. Jesse H. Moore

84th Indiana, Col. Nelson Trusler

22d Michigan (temporarily attached), Col. Heber Le Favour, Lt. Col. William Sanborn, Capt. Alonzo M. Keeler

40th Ohio, Lt. Col. William Jones

89th Ohio (temporarily attached), Col. Caleb H. Carlton, Capt. Isaac C. Nelson

Ohio Light Artillery, 18th Battery, Capt. Charles C. Aleshire

2d Brigade

Col. John G. Mitchell

78th Illinois, Lt. Col. Carter Van Week, and Lt. George Green

98th Ohio, Capt. Moses J. Urquhart, Capt. Armstrong J. Thomas

113th Ohio, Lt. Col. Darius B. Warner

121st Ohio, Lt. Col. Henry B. Banning

1st Illinois Light Artillery, Battery M, Lt. Thomas Burton

2D DIVISION

Brig. Gen. James D. Morgan

2d Brigade

Col. Daniel McCook

85th Illinois, Col. Caleb J. Dilworth

86th Illinois, Lt. Col. David W. Magee

126th Illinois, Col. Oscar F. Harmon

52d Ohio, Maj. James T. Holmes

69th Ohio (temporarily attached), Lt. Col. Joseph H. Brigham

2d Illinois Light Artillery, Battery I, Capt. Charles M. Barnett

CAVALRY CORPS

Brig. Gen. Robert B. Mitchell

1ST DIVISION

Col. Edward M. McCook

1st Brigade

Col. Archibald P. Campbell

2d Michigan, Maj. Leonidas S. Scranton

9th Pennsylvania, Lt. Col. Roswell M. Russell

1st Tennessee, Lt. Col. James P. Brownlow

2d Brigade

Col. Daniel M. Ray

2d Indiana, Maj. Joseph B. Presdee

4th Indiana, Lt. Col, John T. Deweese

2d Tennessee, Lt. Col. William R. Cook

1st Wisconsin, Col. Oscar H. La Grange

1st Ohio Light Artillery, Battery D (section), Lt. Nathaniel M. Newell

3d Brigade

Col. Louis D. Watkins

4th Kentucky, Col. Wickliffe Cooper

5th Kentucky, Lt. Col. William T. Hoblitzell

6th Kentucky, Maj, Louis A. Gratz

2D DIVISION

Brig. Gen. George Crook

1st Brigade

Col. Robert H. G. Minty

3d Indiana (battalion), Lt. Col. Robert Klein

4th Michigan, Maj. Horace Gray

7th Pennsylvania, Lt. Col. James J. Seibert

4th United States, Capt. James B. McIntyre

2d Brigade

Col. Eli Long

2d Kentucky, Col. Thomas P. Nicholas

1st Ohio, Lt. Col. Valentine Cupp, Maj. Thomas J. Patten

3d Ohio, Lt. Col. Charles B. Seidel

4th Ohio, Lt. Col. Oliver P. Robie

Artillery

Chicago (Illinois) Board of Trade Battery, Capt. James H. Stokes