Maps of Chickamauga
Map Legend
The Battle
The Campaign
Sept. 18th, 1863
Sept. 19th, 1863
Sept. 20th, 1863
Then and Now
Order of Battle
Wargaming Chickamauga
Conclusions
Bibliography
|
Union Order of Battle
September 20th
For a more in-depth look at the method behind the numbers, read the Methodology page.
Numbers in black are taken straight from primary and secondary sources.
Numbers in red are an estimate based on an equation.
Numbers in blue are a best guess, but still derived from logical methods. For this day, reported casualties have been subtracted from known strengths on the 19th, which still may not account for stragglers, those relieved during sick call, or unreported detachments.
PFDE: Present for Duty, Equipped
PFD: Present for Duty
Total Available: All units ready and available for combat
Total: All units in the immediate area, including train guards and detachments
Click on a unit, at any level, for more in-depth
detail and information including flag images, weapons, and footnotes.
| Summary |
PFDE |
PFD |
| General Headquarters |
968 |
1,004 |
| Fourteenth Army Corps |
15,592 |
15,640 |
| Twentieth Army Corps |
10,650 |
10,683 |
| Twenty-First Army Corps |
13,542 |
13,961 |
| Reserve Corps |
6,045 |
6,129 |
| Cavalry Corps |
8,015 |
8,263 |
|
|
|
| Total Infantry |
46,797 |
47,417 |
| Total Cavalry |
8,015 |
8,263 |
|
|
|
| Total Available Infantry |
44,076 |
44,643 |
| Total Available Cavalry |
7,902 |
8,090 |
|
|
|
| Total Available |
51,978 |
52,733 |
| Grand Total |
54,812 |
55,680 |
|
|
|
 |
|
|
|
|
|
|
|
|
PFDE |
PFD |
| Geneal Headquarters |
968 |
1,004 |
| 1st Battalion Ohio Sharpshooters |
129 |
129 |
| 10th Ohio Infantry |
373 |
396 |
| 15th Pennsylvania Cavalry |
427 |
438 |
|
|
|
 |
|
PFDE |
PFD |
| Fourteenth Army Corps |
15,592 |
15,640 |
| Major General George Thomas |
|
|
| Escort: Company L, 1st Ohio Cavalry |
|
|
| Staff |
|
|
|
|
|
| Provost Guard |
|
|
| 9th Michigan |
|
|
|
|
|
|
|
PFDE |
PFD |
| 1st Division |
|
|
| Major General Absalom Baird |
|
|
| Staff |
|
|
|
|
|
| 1st Brigade |
|
|
| Colonel Benjamin Scribner |
|
|
| Staff |
|
|
| 38th Indiana |
|
|
| 2nd Ohio |
|
|
| 33rd Ohio |
|
|
| 94th Ohio |
|
|
| 10th Wisconsin |
|
|
|
|
|
| 2nd Brigade |
|
|
| Brigadier General John Starkweather |
|
|
| Staff |
|
|
| 24th Illinois |
|
|
| 79th Pennsylvania |
|
|
| 1st Wisconsin |
|
|
| 21st Wisconsin |
|
|
|
|
|
| 3rd Brigade |
|
|
| Brigadier General John King |
|
|
| Staff |
|
|
| 15th United States, 1st Battalion |
|
|
| 18th United States, 1st Battalion |
|
|
| 18th United States, 2nd Battalion |
|
|
19th United States. 1st Battalion &
16th United States, 1st Battalion |
186 |
187 |
|
|
|
| Artillery Battalion |
|
|
| Battery A, 1st Michigan (1st) |
|
|
| 4th Indiana Battery (2nd) |
|
|
Battery H, 5th United States (3rd)
Ordered to Rossville around noon. |
|
|
|
|
|
|
|
PFDE |
PFD |
| 2nd Division |
|
|
| Major General James Negley |
|
|
|
|
|
| 1st Brigade |
|
|
| Brigadier General John Beatty |
|
|
| Staff |
|
|
| 104th Illinois |
292 |
293 |
| 42nd Indiana |
|
|
| 88th Indiana |
|
|
| 15th Kentucky |
|
|
|
|
|
| 2nd Brigade |
|
|
| Colonel Timothy Stanley |
|
|
| Colonel William Stoughton |
|
|
| 19th Illinois |
|
|
| 11th Michigan |
|
|
| 18th Ohio |
|
|
|
|
|
| 3rd Brigade |
|
|
| Colonel William Sirwell |
|
|
| 37th Indiana |
|
|
| 21st Ohio |
534 |
556 |
| 74th Ohio |
|
|
| 78th Pennsylvania |
|
|
|
|
|
| Artillery Battalion |
|
|
| Bridges Light Artillery (1st) |
110 |
110 |
| Battery M, 1st Ohio (2nd) |
|
|
| Battery G, 1st Ohio (3rd) |
|
|
|
|
|
|
|
PFDE |
PFD |
| 3rd Division |
|
|
| Brigadier General John Brannan |
|
|
| Staff |
|
|
|
|
|
| 1st Brigade |
|
|
| Colonel John Connell |
1,208 |
1,342 |
| Staff |
8 |
8 |
| 82nd Indiana |
281 |
312 |
| 17th Ohio |
454 |
505 |
| 31st Ohio |
465 |
517 |
|
|
|
| 2nd Brigade |
|
|
| Colonel John Croxton |
|
|
| Colonel William Hays |
|
|
| Staff |
|
|
| 10th Indiana |
|
|
| 74th Indiana |
252 |
253 |
| 4th Kentucky |
|
|
| 10th Kentucky |
|
|
| 14th Ohio |
263 |
253 |
|
|
|
| 3rd Brigade |
1,338 |
1,414 |
| Colonel Ferdinand Van Derveer |
|
|
| Staff |
6 |
6 |
| 87th Indiana |
317 |
318 |
| 2nd Minnesota |
295 |
296 |
| 9th Ohio |
439 |
440 |
| 35th Ohio |
281 |
354 |
|
|
|
| Artillery Battalion |
366 |
367 |
| Battery D, 1st Michigan (1st) |
118 |
118 |
| Battery C, 1st Ohio (2nd) |
121 |
121 |
| Battery I, 4th United States (3rd) |
127 |
127 |
|
|
|
|
|
PFDE |
PFD |
| 4th Division |
|
|
| Major General Joseph Reynolds |
|
|
| Escort: Company H, 72nd Indiana |
|
|
| Staff |
|
|
|
|
|
| 1st Brigade |
|
|
| Colonel John Wilder |
|
|
| 92nd Illinois |
358 |
359 |
| 98th Illinois |
|
|
| 123rd Illinois |
|
|
| 17th Indiana |
|
|
| 72nd Indiana |
|
|
|
|
|
| 2nd Brigade |
|
|
| Colonel Edward King |
|
|
| Colonel Milton Robinson |
|
|
| 68th Indiana |
|
|
| 75th Indiana |
|
|
| 101st Indiana |
|
|
| 105th Ohio |
250 |
251 |
|
|
|
| 3rd Brigade |
|
|
| Brigadier General John Turchin |
|
|
| Staff |
|
|
| 18th Kentucky |
191 |
192 |
| 11th Ohio |
|
|
| 36th Ohio |
|
|
| 92nd Ohio |
337 |
338 |
|
|
|
| Artillery Battalion |
|
|
| 18th Indiana (1st) |
|
|
| 19th Indiana (2nd) |
100 |
100 |
| 21st Indiana (3rd) |
|
|
|
|
|
|
|
PFDE |
PFD |
| Twentieth Army Corps |
10,650 |
10,683 |
| Major General Alexander McCook |
|
|
| Escort: Company I, 2nd Kentucky Cavalry |
|
|
| Provost: Company H, 81st Illinois Infantry |
|
|
| Staff |
|
|
|
|
|
|
PFDE |
PFD |
| 1st Division |
|
|
| Brigadier General Jefferson Davis |
|
|
| Staff |
|
|
|
|
|
1st Brigade (detached guarding trains) |
1,245 |
1,249 |
| Col. Sidney Post |
|
|
| Staff |
6 |
6 |
| 59th Illinois |
285 |
286 |
| 74th Illinois |
354 |
355 |
| 75th Illinois |
200 |
201 |
| 22nd Indiana |
400 |
401 |
| |
|
|
| 2nd Brigade |
|
|
| Brigadier General William Carlin |
|
|
| Staff |
|
|
| 21st Illinois |
|
|
| 38th Illinois |
|
|
| 81st Indiana |
189 |
190 |
| 101st Ohio |
133 |
133 |
|
|
|
| 3rd Brigade |
|
|
| Colonel John Martin |
|
|
| Staff |
|
|
| 25th Illinois |
|
|
| 35th Illinois |
|
|
| 8th Kansas |
|
|
| 15th Wisconsin |
110 |
110 |
|
|
|
| Artillery Battalion |
|
|
| 5th Wisconsin (1st) |
|
|
| 2nd Minnesota (2nd) |
|
|
| 8th Wisconsin (3rd) |
|
|
|
|
|
|
|
PFDE |
PFD |
2nd Division |
|
|
| Brigadier General Richard Johnson |
|
|
| Staff |
|
|
|
|
|
| 1st Brigade |
|
|
| Brigadier General August Willich |
|
|
| Staff |
|
|
| 89th Illinois |
|
|
| 32nd Indiana |
|
|
| 15th Ohio |
|
|
| 49th Ohio |
344 |
345 |
| 39th Indiana |
|
|
|
|
|
| 2nd Brigade |
|
|
| Colonel Joseph Dodge |
|
|
| Staff |
|
|
| 79th Illinois & 77th Pennsylvania |
|
|
| 29th Indiana |
211 |
212 |
| 30th Indiana |
|
|
|
|
|
| 3rd Brigade |
|
|
| Colonel William Berry |
|
|
| Staff |
|
|
| 6th Indiana |
|
|
| 5th Kentucky |
|
|
| 1st Ohio |
|
|
| 93rd Ohio |
354 |
355 |
|
|
|
| Artillery Battalion |
|
|
| Battery A, 1st Ohio (1st) |
|
|
| 20th Ohio (2nd) |
|
|
| 5th Indiana (3rd) |
|
|
|
|
|
|
|
PFDE |
PFD |
| 3rd Division |
|
|
| Major General Philip Sheridan |
|
|
| Staff |
|
|
|
|
|
| 1st Brigade |
|
|
| Brigadier General William Lytle |
|
|
| Colonel Silas Miller |
|
|
| Staff |
|
|
| 36th Illinois |
|
|
| 88th Illinois |
|
|
| 21st Michigan |
|
|
| 24th Wisconsin |
|
|
|
|
|
| 2nd Brigade |
|
|
| Colonel Bernard Laiboldt |
|
|
| Staff |
|
|
| 44th Illinois |
|
|
| 73rd Illinois |
|
|
| 2nd Missouri |
|
|
| 15th Missouri |
|
|
|
|
|
| 3rd Brigade |
|
|
| Colonel Nathan Walworth |
|
|
| Staff |
|
|
| 22nd Illinois |
|
|
| 27th Illinois |
415 |
416 |
| 42nd Illinois |
|
|
| 51st Illinois |
129 |
129 |
|
|
|
| Artillery Battalion |
|
|
| 11th Indiana (1st) |
|
|
| Battery G, 1st Missouri (2nd) |
|
|
| Battery C, 1st Illinois (3rd) |
|
|
|
|
|
|
|
PFDE |
PFD |
| Twenty-First Army Corps |
13,542 |
13,961 |
| Major General Thomas Crittenden |
|
|
| Escort: Company K, 15th Illinois Cavalry |
|
|
| Staff |
|
|
|
|
|
|
PFDE |
PFD |
| 1st Division |
|
|
| Brigadier General Thomas Wood |
|
|
| Staff |
|
|
|
|
|
| 1st Brigade |
|
|
| Colonel George P. Buell |
|
|
| Staff |
|
|
| 100th Illinois |
|
|
| 58th Indiana |
286 |
295 |
| 13th Michigan |
|
|
| 26th Ohio |
161 |
166 |
| |
|
|
| 2nd Brigade (Chattanooga garrison) |
1,476 |
1,520 |
| Brigadier General George Wagner |
|
|
| Staff |
38 |
38 |
| 15th Indiana |
351 |
362 |
| 40th Indiana |
375 |
387 |
| 57th Indiana |
278 |
287 |
| 97th Ohio |
434 |
447 |
|
|
|
| 3rd Brigade |
|
|
| Colonel Charles Harker |
|
|
| Staff |
|
|
| 3rd Kentucky |
392 |
404 |
| 64th Ohio |
317 |
327 |
| 65th Ohio |
|
|
| 125th Ohio |
303 |
312 |
|
|
|
| Artillery |
241 |
248 |
| 8th Indiana (1st) |
127 |
131 |
| 10th Indiana (2nd) |
122 |
126 |
| 6th Ohio (3rd) |
114 |
118 |
|
|
|
|
|
PFDE |
PFD |
| 2nd Division |
|
|
| Major General John Palmer |
|
|
| Staff & Escort |
|
|
|
|
|
| 1st Brigade |
|
|
| Brigadier General Charles Cruft |
|
|
| Staff |
|
|
| 31st Indiana |
|
|
| 1st Kentucky |
97 |
100 |
| 2nd Kentucky |
|
|
| 90th Ohio |
353 |
364 |
|
|
|
| 2nd Brigade |
1,028 |
1,060 |
| Brigadier General William Hazen |
|
|
| Staff |
|
|
| 9th Indiana |
251 |
259 |
| 6th Kentucky |
|
|
| 41st Ohio |
257 |
265 |
| 124th Ohio |
|
|
|
|
|
| 3rd Brigade |
|
|
| Colonel William Grose |
|
|
| Staff |
|
|
| 84th Illinois |
|
|
| 36th Indiana |
|
|
| 23rd Kentucky |
219 |
226 |
| 6th Ohio |
|
|
| 24th Ohio |
|
|
|
|
|
| Artillery |
|
|
| Battery B, 1st Ohio (1st) |
129 |
133 |
| Battery F, 1st Ohio (2nd) |
109 |
112 |
| Battery H, 4th United States (3rd) |
|
|
| Battery M, 4th United States (3rd) |
|
|
|
|
|
|
|
PFDE |
PFD |
| 3rd Division |
|
|
| Brigadier General Horatio Van Cleve |
|
|
| Provost Guard: Company A 9th Kentucky |
|
|
| Staff |
|
|
|
|
|
| 1st Brigade |
|
|
| Brigadier General Samuel Beatty |
|
|
| Staff |
|
|
| 79th Indiana |
|
|
| 9th Kentucky |
|
|
| 17th Kentucky |
|
|
| 19th Ohio |
|
|
|
|
|
| 2nd Brigade |
|
|
| Colonel George Dick |
|
|
| Staff |
|
|
| 44th Indiana |
|
|
| 86th Indiana |
229 |
236 |
| 13th Ohio |
|
|
| 59th Ohio |
249 |
257 |
|
|
|
| 3rd Brigade |
1,006 |
1,037 |
| Attached to Wood's 1st Division about 9 AM. |
|
|
| Colonel Sidney Barnes |
|
|
| Staff |
6 |
6 |
| 35th Indiana |
190 |
196 |
| 8th Kentucky |
270 |
278 |
| 51st Ohio |
237 |
244 |
| 99th Ohio |
303 |
312 |
|
|
|
| Artillery |
|
|
| 26th Pennsylvania (1st) |
|
|
| 7th Indiana (2nd) |
|
|
| 3rd Wisconsin (3rd) |
|
|
|
|
|
|
|
PFDE |
PFD |
| Reserve Corps |
6,054 |
6,129 |
| Major General Gordon Granger |
|
|
| Staff |
5 |
5 |
|
|
|
| 1st Division |
3,938 |
4,007 |
| Brigadier General James Steedman |
|
|
| Staff |
11 |
11 |
|
|
|
| 1st Brigade |
2,590 |
2,623 |
| Brigadier General Walter Whitaker |
|
|
| Staff |
8 |
8 |
| 96th Illinois |
401 |
419 |
| 115th Illinois |
426 |
427 |
| 84th Indiana |
374 |
375 |
| 40th Ohio |
537 |
539 |
| 22nd Michigan |
455 |
465 |
| 89th Ohio |
389 |
390 |
|
|
|
| 2nd Brigade |
1,130 |
1,165 |
| Colonel John Mitchell |
|
|
| Staff |
6 |
6 |
| 78th Illinois |
353 |
386 |
| 98th Ohio |
181 |
182 |
| 113th Ohio |
355 |
356 |
| 121st Ohio |
235 |
236 |
|
|
|
| Artillery |
207 |
207 |
| 18th Ohio (1st) |
95 |
95 |
| Battery M, 1st Illinois (2nd) |
112 |
112 |
|
|
|
|
|
PFDE |
PFD |
| 2nd Division |
2,111 |
2,117 |
| 2nd Brigade |
1,991 |
1,997 |
| Colonel Daniel McCook |
|
|
| Staff |
6 |
6 |
| 85th Illinois |
368 |
372 |
| 86th Illinois |
415 |
421 |
| 52nd Ohio |
414 |
418 |
| 125th Illinois |
439 |
440 |
| 69th Ohio |
349 |
350 |
|
|
|
| Artillery |
|
|
| Battery I, 2nd Illinois (2nd) |
120 |
120 |
|
|
|
|
|
PFDE |
PFD |
| Cavalry Corps |
8,015 |
8,263 |
| Brigadier General Robert Mitchell |
|
|
| Escort: Company D, 4th Ohio Cavalry |
|
|
| Staff |
|
|
|
|
|
|
PFDE |
PFD |
| 1st Division |
|
|
| Colonel Edward McCook |
|
|
| Staff |
8 |
8 |
|
|
|
| 1st Brigade |
|
|
| Colonel Archibald Campbell |
|
|
| 2nd Michigan |
|
|
| 9th Pennsylvania |
|
|
| 1st Tennessee |
|
|
|
|
|
| 2nd Brigade |
|
|
| Colonel Daniel Ray |
|
|
| 2nd Indiana |
|
|
| 4th Indiana |
|
|
| 2nd Tennessee |
375 |
384 |
| 1st Wisconsin |
|
|
|
|
|
| 3rd Brigade |
|
|
| Colonel Louis Watkins |
|
|
| 4th Kentucky |
|
|
| 5th Kentucky |
|
|
| 6th Kentucky |
|
|
|
|
|
| Artillery |
|
|
| Battery D, 1st Ohio one section |
|
|
|
|
|
|
|
PFDE |
PFD |
| 2nd Division |
|
|
| Brigadier General George Crook |
|
|
|
|
|
| 1st Brigade |
|
|
| Colonel Robert Minty |
|
|
| 3rd Indiana Battalion (Chattanooga) |
|
|
| 4th Michigan |
|
|
| 7th Pennsylvania |
|
|
| 4th United States |
|
|
|
|
|
| 2nd Brigade |
|
|
| Colonel Eli Long |
765 |
900 |
| 2nd Kentucky |
|
|
| 1st Ohio |
|
|
| 3rd Ohio |
|
|
| 4th Ohio |
|
|
|
|
|
| Artillery |
|
|
| Chicago Board of Trade Artillery |
|
|
|
|
