Battle of Peachtree Creek order of battle: Union

The following Union Army units and commanders fought in the Battle of Peachtree Creek of the American Civil War. The Confederate order of battle is listed separately.

Abbreviations used

Military rank

MG = Major General
BG = Brigadier General
Col = Colonel
Cpt = Captain

Other

w = wounded
k = killed

Army of the Cumberland

MG George Henry Thomas

IV Corps

MG Oliver O. Howard

Division	Brigade	Regiments and Others
First Division MG David S. Stanley	1st Brigade Col Isaac M. Kirby	21st Illinois 38th Illinois 31st Indiana 81st Indiana 2nd Kentucky 90th Ohio 101st Ohio
	2nd Brigade Col Jacob E. Taylor	96th Illinois 115th Illinois 35th Indiana 84th Indiana 21st Kentucky 40th Ohio 51st Ohio
	3rd Brigade Col William Grose	59th Illinois 75th Illinois 80th Illinois 84th Illinois 9th Indiana 30th Indiana 36th Indiana 77th Pennsylvania
	Artillery Cpt Theodore Thomasson	5th Indiana Light Battery Battery B, Pennsylvania Light
Second Division BG John Newton	1st Brigade BG Nathan Kimball	44th Illinois 36th Illinois 73rd Illinois 88th Illinois 2nd Missouri 15th Missouri 24th Wisconsin
	2nd Brigade Col John W. Blake	100th Illinois 40th Indiana 57th Indiana 28th Kentucky 97th Ohio
	3rd Brigade BG Luther P. Bradley	22nd Illinois 27th Illinois 42nd Illinois 51st Illinois 79th Illinois 3rd Kentucky 64th Ohio 125th Ohio
	Artillery Cpt Charles Aleshire Cpt Wilbur Goodspeed	Battery M, 1st Illinois Light Battery A, 1st Ohio Light
Third Division BG Thomas J. Wood	1st Brigade Col William H. Gibson	25th Illinois 35th Illinois 89th Illinois 8th Kansas 15th Ohio 49th Ohio 15th Wisconsin 124th Ohio
	2nd Brigade BG William B. Hazen	59th Illinois 6th Indiana 5th Kentucky 6th Kentucky 23rd Kentucky 1st Ohio 6th Ohio 41st Ohio 71st Ohio 93rd Ohio
	3rd Brigade Col Frederick Knefler	79th Indiana 86th Indiana 9th Kentucky 17th Kentucky 13th Ohio 19th Ohio 59th Ohio
	Artillery Cpt Cullen Bradley	Bridges' Illinois Light Battery 6th Ohio Light Battery

XIV Corps

MG John M. Palmer

Division	Brigade	Regiments and Others
First Division BG Richard W. Johnson	1st Brigade Col Anson G. McCook	104th Illinois: Ltc Douglas Hapeman 42nd Indiana 88th Indiana 15th Kentucky 2nd Ohio 33rd Ohio 94th Ohio 10th Wisconsin 21st Wisconsin: Maj Michael H. Fitch
	2nd Brigade BG John H. King	11th Michigan 15th U.S. (6 companies) 15th U.S. (9 companies) 16th U.S. (4 companies) 18th U.S. (8 companies) 18th U.S. (4 companies) 19th U.S. (5 companies)
	3rd Brigade Col Marshall F. Moore	37th Indiana 38th Indiana 21st Ohio 74th Ohio 78th Pennsylvania 79th Pennsylvania 1st Wisconsin
	Artillery Cpt Lucius Drury	1st Illinois Light Battery Battery I, 1st Ohio
Second Division BG Jefferson C. Davis	1st Brigade BG James D. Morgan	10th Illinois 16th Illinois 60th Illinois 10th Michigan 14th Michigan 17th New York
	2nd Brigade Col John G. Mitchell	34th Illinois 78th Illinois 98th Ohio 108th Ohio 113th Ohio 121st Ohio
	3rd Brigade Col Caleb J. Dilworth	85th Illinois 86th Illinois 110th Illinois 125th Illinois 22nd Indiana 52nd Ohio
	Artillery Cpt Charles Barnett	2nd Illinois Light Artillery, Battery I 2nd Minnesota Battery (detachment) 5th Wisconsin Light Battery

XX Corps

MG Joseph Hooker

Division	Brigade	Regiments and Others
First Division BG Alpheus S. Williams	1st Brigade BG Joseph F. Knipe	5th Connecticut 3rd Maryland (detachment) 123rd New York 141st New York 46th Pennsylvania 3rd Wisconsin
	2nd Brigade BG Thomas H. Ruger	27th Indiana 2nd Massachusetts 13th New Jersey 107th New York 150th New York
	3rd Brigade Col James S. Robinson	82nd Illinois 101st Illinois 45th New York 143rd New York 61st Ohio 82nd Ohio 31st Wisconsin (Transferred from Nashville, TN, on July 21, 1864.)^[1]
	Artillery Cpt John D. Woodbury	Battery I, 1st New York Light Battery M, 1st New York Light
Second Division BG John W. Geary	1st Brigade Col Charles Candy	5th Ohio 7th Ohio (Mustered out on July 11, 1864.) ^[2] 29th Ohio 66th Ohio 28th Pennsylvania 147th Pennsylvania
	2nd Brigade Col Patrick Henry Jones	33rd New Jersey 119th New York 134th New York 154th New York 73rd Pennsylvania 109th Pennsylvania
	3rd Brigade Col David Ireland	60th New York 102nd New York 137th New York 149th New York 29th Pennsylvania 111th Pennsylvania: Col George A. Cobham, Jr. (k)
Third Division BG William T. Ward	1st Brigade Col Benjamin Harrison	102nd Illinois 105th Illinois 129th Illinois 70th Indiana 79th Ohio
	2nd Brigade Col John Coburn	33rd Indiana 85th Indiana 19th Michigan 22nd Wisconsin
	3rd Brigade Col James Wood	20th Connecticut 33rd Massachusetts 136th New York 55th Ohio 73rd Ohio 26th Wisconsin
	Artillery Cpt Marco B. Gary	Battery I, 1st Michigan Light: Cpt Luther R. Smith Battery C, 1st Ohio Light
Unattached Units	Reserve Brigade Col Heber Le Favour	9th Michigan 22nd Michigan
	Pontoniers Col George P. Buell	58th Indiana
	Siege Artillery Cpt Arnold Sutermeister	11th Indiana Battery

Notes

^ The war of the rebellion: a compilation of the official records of the Union and Confederate armies; Series 1 - Volume XXXVIII; Part 1 - Reports, etc. Official Report No.2, Organization of the Union forces, page 98
^ The war of the rebellion: a compilation of the official records of the Union and Confederate armies, Series I, Volume XXXVIII; Part 1 – Reports, etc. Official Report No. 2, Organization of the Union forces, page 89