Organized at Jacksonville, Ill., and mustered in May 25, 1861. Moved to Quincy, Ill., June 28, 1861. Attached to Dept. of MisSouri to February, 1862. 2nd Brigade, 4th Division, District of West Tennessee, and Army of the Tennessee, to July, 1862. 2nd Brigade, 4th Division, District of Memphis, Tenn., to September, 1862. 2nd Brigade, 4th Division, District of Jackson, Tenn., to November, 1862. 2nd Brigade, 4th Division, Right Wing 13th Army Corps (Old), Dept. of the Tennessee, to December, 1862. 2nd Brigade, 4th Division, 17th Army Corps, Army of the Tennessee, to January, 1863. 2nd Brigade, 4th Division, 16th Army Corps, to July, 1863. 2nd Brigade, 4th Division, 13th Army Corps, to August, 1863. 2nd Brigade, 4th Division, 17th Army Corps, to November, 1864. 1st Brigade, 4th Division, 17th Army Corps, to April, 1865. 2nd Brigade, 4th Division, 17th Army Corps, to June, 1865. Dept. of Missouri to September, 1865.
SERVICE - Moved to St. Charles, Mo., thence to Hannibal, Jefferson Barracks and Rolla, Mo., July-August, 1861. Advance toward Columbus August 29-September 8. Join Fremont's Army at Tipton, Mo., October 1. Fremont's advance on Springfield, Mo., October 13-November 3. Moved to Sedalia, thence to Otterville, and duty there till February, 1862. Moved to St. Louis, thence to Fort Donelson, Tenn., February 1-16. Capture of Fort Donelson February 16. Expedition to Crump's Landing and occupation of Pittsburg Landing, Tenn., March 14-17. Battle of Shiloh, Tenn., April 6-7. Advance on and siege of Corinth, Miss., April 29-May 30. March to Memphis, Tenn., via Grand Junction, Holly Springs and LaGrange, June 1-July 21. Duty at Memphis till September 6. March to Bolivar and forced march to Hatchie River September 6-October 4. Near Middletown October 4. Battle of the Hatchie, Metamora, October 5. Grant's Central Mississippi Campaign. Operations on the Mississippi Central R. R. from Bolivar to Coffeeville October 31, 1862, to January 10, 1863. Duty at Memphis, Tenn., till May, 1863. Ordered to Vicksburg, Miss., May 13. Siege of Vicksburg, Miss., May 22-July 4. Advance on Jackson, Miss., July 5-10. Siege of Jackson July 10-17. Assault on Jackson July 12. Moved to Natchez, Miss., August 15, and duty there till November 10. Expedition to Harrisonburg September 1-7. Near Harrisonburg and capture of Fort Beauregard September 4. Moved to Vicksburg November 10. and duty there till February 1, 1864. Meridian Campaign February 3-March 5. Champion's Hill, Baker's Creek, February 4. Movement 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 to September 8. Assigned to garrison duty at Allatoona Pass, Ackworth, Big Shanty and Marietta, Ga., till November, 1864. Regiment consolidated with 15th Illinois Infantry July 1, 1864, as 14th and 15th Battalion Illinois Infantry. Action at Big Shanty October 3 (2 Cos.). Ackworth, Ga., October 4 (3 Cos.). Morris Station October 4 (Detachment). Allatoona Pass October 5 (Detachment). 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 14-16. Salkehatchie Swamps February 2-5. Rivers' Bridge, Salkehatchie River, February 3. Binnaker's Bridge, South Edisto River, February 9. Orangeburg, North Edisto River, February 11-12. Columbia February 15-17. Cheraw March 3. Battle of Bentonville, N. C., March 19-21. Occupation of Goldsboro March 24, and of Raleigh April 14. Bennett's House April 26. Surrender of Johnston and his army. Regiment reorganized from 14th and 15th Battalion at Raleigh, N. C., April 28, 1865. March to Washington, D.C., via Richmond, Va., April 29-May 19. Grand Review May 24. Moved to Louisville, Ky., June 7-10, thence to St. Louis, Mo., and Fort Leavenworth, Kansas. March to Fort Kearney July 1-14, and duty on the plains till September 1. Ordered to Fort Leavenworth, Kansas, September 1.
Mustered out at Fort Leavenworth, Kansas, September 18, 1865.
Regiment lost during service 62 Enlisted men killed and mortally wounded and 1 Officer and 160 Enlisted men by disease. Total 223.