25th Illinois Infantry

== Regimental History and Service Record ==
Organized at St. Louis, Mo., and mustered in August 4, 1861. Attached to Department of Missouri to January, 1862. 4th Brigade, Army of Southwest Missouri, to March, 1862. 1st Brigade, 1st Division, Army of Southwest Missouri, to June, 1862. 1st Brigade, 4th Division, Army of the Mississippi, to September, 1862. 32nd Brigade, 9th Division, Army of the Ohio, to October, 1862. 32nd Brigade, 9th Division, 3rd Army Corps, Army of the Ohio, to November, 1862. 3rd Brigade, 1st Division, Right Wing, 14th Army Corps, Army of the Cumberland, to January, 1863. 3rd Brigade, 1st Division, 20th Army Corps, Army of the Cumberland, to October, 1863. 1st Brigade, 3rd Division, 4th Army Corps, to August, 1864.
SERVICE.--At St. Louis, Mo., until August 23, 1861. Moved to Jefferson City, Mo. Fremont's Campaign against Springfield, Mo., September 25-November 8. March to Rolla, Mo., November 13-19, and duty there until February, 1862. Advance on Springfield, Mo., February 2-13. Skirmish at Crane Creek February 14. Pursuit of Price, to Benton County, Arkansas. Battles of Pea Ridge, Ark., March 6-8. March to Batesville April 5-May 3. Moved to Cape Girardeau, Mo., May 11-20, thence to Pittsburg Landing, Tenn., May 22-26. Advance on and siege of Corinth, Miss., April 29-May 30. Pursuit to Boonesville May 31-June 6. Duty at Jacinto, Miss., until August 4. Reconnaissance to Bay Springs August 4-7. Skirmish at Bay Springs August 4. March to Nashville, Tenn., August 21-September 1, thence to Louisville, Ky., in pursuit of Bragg, September 2-26. Pursuit of Bragg into Kentucky October 1-15. Near Perryville October 6-7. 
* October 8, 1862 - Battle of Perryville, Kentucky 
Stanford October 14. March to Nashville, Tenn., October 17-November 7. Skirmish at White Range, Tenn., November 7. Expedition to Harpeth Shoals and Clarksville November 26-December 1. Reconnaissance toward Franklin December 9. Near Brentwood December 9. Advance on Murfreesboro December 26-30. Nolensville Knob Gap December 26. Battle of Stone's River December 30-31, 1862, and January 1-3, 1863. Duty at Murfreesboro until June. Reconnaissance to Salem and Versailles March 9-14. Operations on Edgeville Pike June 4. Middle Tennessee (or Tullahoma) Campaign June 24-July 7. Liberty Gap June 24-27. Occupation of Middle Tennessee until August 16. 
* August 16-September 22, 1863 - The Chickamauga Campaign
** Caperton's Ferry, near Bridgeport, August 29. 
** September 19-September 20, 1863 - Battle of Chickamauga, Georgia
* September 24-October 27, 1863 - Siege of Chattanooga, Tennessee
* November 23-27, 1863 - The Chattanooga/Ringgold Campaign
** Orchard Knob November 23-24. 
** Mission Ridge November 25. 
* March to relief of Knoxville November 28-December 8. 
* Operations in East Tennessee until February, 1864. 
* At Cleveland, Tenn., until June. 
* Guard train to front June 4-7. 
* June 6-August 1, 1864 - The Atlanta Campaign
** Operations about Marietta and against Kenesaw Mountain June 10-July 2. 
** Pine Hill June 11-14. 
** Lost Mountain June 15-17. 
** Assault on Kenesaw June 27. 
** Ruff's Station July 4. 
** Chattahoochie River July 6-17. 
** Peach Tree Creek July 19-20. 
** July 22-August 1, 1864 - Siege of Atlanta, Georgia
** Sent to rear for muster out August 1, and mustered out at Camp Butler, Ill., September 5, 1864.
== Regimental Roster ==
 
 
 Field and Staff Officers
 
 
 Regimental Band
 
 
 Company A
 
 
 Company B
 
 
 Company C
 
 
 Company D
 
 
 Company E
 
 
 Company F
 
 
 Company G
 
 
 Company H
 
 
 Company I
 
 
 Company K
 
 
 Unassigned
 
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== Regiment Statistical Information ==
* Regiment lost during service 3 Officers and 80 Enlisted men killed and mortally wounded and 1 Officer and 148 Enlisted men by disease. Total 232.
== Legacy ==
== Notes ==
== Sources == 
* (Pages 701, 703, 715, 733, 827, 862, 866, 1055-1056)
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