Organized at Iowa City and mustered in November 15, 1862. Moved to Columbus, Ky., December 17. Attached to District of Columbus, Ky., 16th Army Corps, Dept. of Tennessee, to June, 1863. Kimball's Provisional Division, 16th Army Corps, to July, 1863. Kimball's Provisional Division, District of Eastern Arkansas, to August, 1863. 2nd Brigade, 2nd Division, Arkansas Expedition, to January, 1864. 2nd Brigade, 2nd Division, 7th Army Corps, Dept. of Arkansas, to March, 1864. 3rd Brigade, 3rd Division, 7th Army Corps, to May, 1864. 2nd Brigade, 1st Division, 7th Army Corps, to February, 1865. 1st Brigade, 1st Division, 7th Army Corps, February, 1865. 1st Brigade, 3rd Division, 7th Army Corps, to June, 1865.
Duty at Columbus, Ky., till March 3, 1863. Moved to Paducah, Ky., and duty there till May 31. Moved to Vicksburg, Miss., May 31-June 3. Siege of
Vicksburg June 3-July 4. Moved to Helena, Ark., July 23. Steele's Expedition to Little Rock August 1-September 10. Bayou Fourche and capture of Little Rock September 10. Duty at Little Rock till March, 1864. Steele's Expedition to Camden March 23-May 3. Okalona April 2-3. Prairie D'Ann April 9-12. Camden April 16-18. Moro Bottom April 25. Near Princeton April 28. Jenkins Ferry, Saline River, April 30. Duty at Little Rock till August 24. At Brownsville Station August 24-September 4. At Little Rock till February, 1865. Expedition to Mt. Elba January 22-February 4. At Fort Smith and Fort Gibson, Cherokee Nation, till June. Mustered out June 5, 1865.
Regiment lost during service 19 Enlisted men killed and mortally wounded and 2 Officers and 184 Enlisted men by disease. Total 205.