Organized at Jacksonville, Ill., and mustered in at Cairo, Ill., September 18, 1861. Attachced to District of Cairo to October, 1861. 1st Brigade, District of Cairo to February, 1862. 1st Brigade, 1st Division, District of Cairo, February, 1862. 1st Brigade, 1st Division, District of West Tennessee, and Army of the Tennessee, to July, 1862. 1st Brigade, 1st Division, District of Jackson, to September, 1862. 2nd Brigade, 1st Division, District of Jackson, to November, 1862. 1st Brigade, 3rd Division, Right Wing 13th Army Corps (Old), Department of the Tennessee, to December, 1862. 1st Brigade, 3rd Division, 17th Army Corps, to April, 1865. 2nd Brigade, 4th Division, 17th Army Corps, to July, 1865.
SERVICE - Duty at Cairo, Ill., till February, 1862. Expedition to Belmont, Mo., November 6-7, 1861. Battle of Belmont November 7. Reconnoissance of Columbus, Ky., January 16-22, 1862. Operations against Forts Henry and Heiman February 2-6. Capture of Forts Henry and Heiman February 6. Investment and capture of Fort Donelson, Tenn., February 12-16. Garrison at Fort Donelson till April 22. Moved to Pittsburg Landing, Tenn., April 22-25. Advance on and siege of Corinth, Miss., April 29-May 30. Moved to Jackson, Tenn., June 4-7, and duty there till November. Action at Burnt Bridge, near Humboldt, Tenn., September 5. March to relief of Corinth and pursuit to Ripley October 3-12. Actions at Chewalla and Big Hill October 5. Grant's Central Mississippi Campaign November 2, 1862, to January 10, 1863. Reconnoissance from LaGrange November 8-9, 1862. Moved to La Grange, thence to Memphis, Tenn., January 10-19, 1863, and to Lake Providence, La., March 10. Moved to Milliken's Bend, La., April 17. Passage of Vicksburg and Warrenton batteries April 22 (Detachment). Movement on Bruinsburg and turning Grand Gulf April 25-30. Battle of Thompson's Plantation, or Port Gibson, May 1. North Fork Bayou Pierre and Ingraham's Heights May 3. Battles of Raymond, Miss., May 12. Jackson May 14. Champion's Hill May 16. Big Black River Bridge May 17. Siege of Vicksburg, Miss., May 18-July 4. Assaults on Vicksburg May 19-22 and June 25. Surrender of Vicksburg July 4. Duty there and at Big Black till February, 1864. Stephenson's Expedition to Monroe, La., August 20-September 2. Expedition toward Canton October 14-20. Bogue Chitto Creek October 17. Meridian Campaign February 3-March 2, 1864. Meridian February 13-14. Chunkey Station February 14. Meridian February 14-15. Brandon February 16. Canton February 29. Veterans on furlough March and April, 1864. Rendezvous at Carbondale, Ill., and moved to Cairo, Ill., thence to Clifton, Tenn., and march to Ackworth, Ga., via Huntsville and Decatur, Ala., and Rome, Ga., April 28-June 8. Atlanta (Ga.) Campaign June 8-September 8. Operations about Marietta and against Kenesaw Mountain June 10-July 2. Assault on Brushy Mountain June 15. Assault on Kenesaw June 27. Nickajack Creek July 2-5. Chattahoochie River July 5-17. Howell's Ferry July 5. Battle of Leggett's Bald Hill July 20-21. Battle of Atlanta July 22. Siege of Atlanta July 22-August 25. Ezra's Chapel, Hood's second sortie, July 28. 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 1-26. March to the sea November 15-December 10. Siege of Savannah December 10-21. Campaign of the Carolinas January to April, 1865. Pocotaligo, S. C., January 14. Salkehatchie Swamps February 1-5. Barker's Mills, Whippy Swamp, February 3. Binnaker's Bridge, South Edisto River, February 9. Orangeburg, North Edisto River, February 11-12. Columbia February 15-17. Battle of Bentonville, N. C., March 20-21. Occupation of Goldsboro March 24. Advance on Raleigh April 10-14. Occupation of Raleigh April 14. Bennett's House April 26. Surrender of Johnston and his army. March to Washington, D.C., via Richmond, Va., April 29-May 19. Grand Review May 24. Moved to Louisville, Ky., June 8-11, and Provost duty there till July 19.
Mustered out July 19 and discharged at Springfield, Ill., July 31, 1865.
Regiment lost during service 9 Officers and 166 Enlisted men killed and mortally wounded and 3 Officers and 293 Enlisted men by disease. Total 471.