Organized at Camp Butler, Ill., and mustered in August 28, 1861. Moved to Cairo, Ill., September 1, 1861. Attached 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, Tenn., to September, 1862. 3rd Brigade, 1st Division, District of Jackson, Tenn., to November, 1862. 1st Brigade, 3rd Division, Right Wing, 13th Army Corps (Old), Department of the Tennessee, to December, 1862. 2nd Brigade, 3rd Division, Right Wing. 13th Army Corps, December, 1862, 2nd Brigade, 3rd Division, 17th Army Corps, Army of the Tennessee, to December, 1863. 3rd Brigade, 3rd Division, 17th Army Corps, to April, 1864. 1st Brigade, 3rd Division, 17th Army Corps, to April, 1865. 1st Brigade, 4th Division, 17th Army Corps, to July, 1865.
SERVICE - Duty at Cairo, Ill., till February, 1862. Scout into Kentucky October 22-24, 1861. Expedition to Belmont November 6-7. Battle of Belmont November 7. Expedition toward 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 Bethel, thence to Jackson, Tenn., June 4-7. Capture of Jackson June 7. Duty there till August 13. March to Estenaula August 13-14, and to Denmark August 31. Medon's Station, Britton's Lane, September 1. March to Jackson September 2-4, and duty there till November 2. Grant's Central Mississippi Campaign November 2, 1862, to January 10, 1863. Reconnoissance from LaGrange November 8-9, 1862. Moved to Memphis, Tenn., January 10, 1863. Moved to Lake Providence, La., February 22-24. Duty there till April 17, thence moved to Milliken's Bend, La. Flank movement on Bruinsburg and turning Grand Gulf April 25-30. Battle of Thompson's Plantation, Port Gibson, May 1. North Fork Bayou Pierre May 3. Hankinson's Ferry, near Black River, May 3-4. Battles of Raymond May 12, Jackson May 14, Champion's Hill May 16, Big Black River 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 at Vicksburg till February, 1864. Stephenson's Expedition to Monroe, La., August 20-September 2, 1863. Expedition toward Canton October 14-20. Bogue Chitto Creek October 17. Meridian Campaign February 3 to March 2. Veterans on furlough March 5-April 18. Moved to Cairo, Ill.; thence to Clifton, Tenn., April 18-30. March to Huntsville, Ala., thence to Decatur, Ala., Rome and Kingston, Ga., to Ackworth, Ga., May 5-June 8. Atlanta (Ga.) Campaign June 8 to September 8. Operations about Marietta and against Kenesaw Mountain June 10-July 2. Assault on Brushy Mountain June 15. Assault on Kenesaw Mountain June 27. Nickajack Creek July 2-5. Howell's Ferry July 5. Chattahoochie River July 5-17. Battle of Leggett's Bald Hill July 20-21. Battle of Atlanta July 22. Siege of Atlanta July 22-August 25. Ezra 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 9-12, and Provost duty there till July 16.
Mustered out July 16 and discharged at Chicago, Ill., July 24, 1865.
Regiment lost during service 10 Officers and 115 Enlisted men killed and mortally wounded and 2 Officers and 218 Enlisted men by disease. Total 345.