80th Illinois Infantry

== Regimental History and Service Record ==
Organized at Centralia, II1., and mustered in August 25, 1862. Moved to Louisville, Ky., September 4, 1862. Attached to 33rd Brigade, 10th Division, Army of the Ohio, to October, 1862. 33rd Brigade, 10th Division, 1st Army Corps, Army of the Ohio, to November, 1862. 1st Brigade, 5th Division, Centre, 14th Army Corps, Army of the Cumberland, to January, 1863. 1st Brigade, 5th Division, 14th Army Corps, to April, 1863. Streight's Independent Brigade, Dept. of the Cumberland to May, 1863. 2nd Brigade, 4th Division, 14th Army Corps, Army of the Cumberland, June to October, 1863. 3rd Brigade, 3rd Division, 11th Army Corps, Army of the Cumberland, to December, 1863. 3rd Brigade, 1st Division, 4th Army Corps, Army of the Cumberland, to June, 1865.
SERVICE.--Pursuit of Bragg into Kentucky October 1-16, 1862. 
* October 8, 1862 - Battle of Perryville, Kentucky 
March to Munfordsville, Ky., October 12-18, and duty there until November 30. Expedition to Cave City October 31-November 26. Moved to Bledsoe Creek November 30. Pursuit of Morgan to Bear Wallow December 26; 1862-January 2, 1863. Moved to Nashville, thence to Murfreesboro, Tenn., January 3-10, and duty at Murfreesboro until April. 
* February 3-5, 1863 - Expedition from Murfreesboro, Tennessee
Expedition to Woodbury March 3-8. Vaught's Hill, Milton, March 20. Moved to Nashville, Tenn., April 7, and attached to Streight's Provisional Brigade. Moved to Eastport, Miss., April 12-19, thence march to Tuscumbia, Ala., and Regiment mounted. Streight's Raid from Tuscumbia toward Rome, Ga., April 26-May 3. Day's Gap April 28. Sand Mountain April 30. Crooked Creek, Hog Mountain, April 30. East Branch Black Warrior Creek May 1. Blount's Farm May 2. Near Centre May 2. Cedar Bluffs May 3. Surrendered to vastly superior forces under Forest. Paroled. Moved to Atlanta, Ga., thence to Richmond, Va., and Annapolis, Md., May 4-17. Moved to Camp Chase, Ohio, May 19. Declared exchanged June 23, and moved to St. Louis, Mo., thence to Nashville, Tenn., and Stevenson, Ala., June 29-September 8. Moved to Battle Creek, Tenn., October 16, and to Bridgeport, Ala., October 23. Reopening Tennessee River October 26-29. Battle of Wauhatchie, Tenn., October 28-29. Duty in Lookout Valley until November 23. 
* November 23-27, 1863 - The Chattanooga/Ringgold Campaign
** Orchard Knob November 23.
** Tunnel Hill November 24-25.
** Mission Ridge November 25.
** Pursuit to Graysville November 26-27.
* March to relief of Knoxville November 28-December 17.
* Duty at Whitesides, Tyner's Station and Blue Springs until May, 1864. 
* Demonstration on Dalton, Ga., February 22-27, 1864.
* Tunnel Hill, Buzzard's Roost Gap and Rocky Faced Ridge February 23-25.
* Near Dalton February 23. 
* May 1-September 8, 1864 - The Atlanta Campaign
** Tunnel Hill May 6-7. 
** May 8-11, 1864 - Demonstration against Rocky Faced Ridge, Georgia
** Buzzard's Roost Gap May 8-9. 
** May 9-13, 1864 - Demonstration on Dalton, Georgia
** Near Dalton May 13. 
** May 14-May 15, 1864 - Battle of Resaca, Georgia
** Near Kingston May 18-19. 
** Near Cassville May 19. 
** Advance on Dallas May 22-25. 
** May 25-June 5, 1864 - Operations in Bartow County, Georgia
** 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, Smyrna Camp Ground, July 4. 
** Chattahoochie River July 5-17. 
** Peach Tree Creek July 19-20. 
** July 22-August 25, 1864 - Siege of Atlanta, Georgia
** Flank movement on Jonesboro August 25-30. 
** Battle of Jonesboro August 31-September 1. 
** LoveJoy Station September 2-6. 
** Pursuit of Hood into Alabama October 3-26. 
Nashville Campaign November-December. Columbia, Duck River, November 24-27. Spring Hill November 29. Battle of Franklin November 30. Battle of Nashville December 15-16. Pursuit of Hood to the Tennessee River December 17-28. Moved to Huntsville, Ala., and duty there until March, 1865. Expedition to Bull's Gap and operations in East Tennessee March 15 to April 22. Moved to Nashville, Tenn., and duty there until June. Mustered out June 10, 1865.
== 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 6 Officers and 52 Enlisted men killed and mortally wounded and 160 Enlisted men by disease. Total 218.
== Legacy ==
== Notes ==
== Sources == 
* (Pages 703, 704, 705, 707, 715, 733, 854, 866, 1080-1081)
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