Organized at Camp Butler, Ill., and mustered in September 3, 1861. Moved to Ironton, Mo., September 20, 1861. Attached to Department of Missouri to March, 1862. 2nd Brigade, Steele's Army of Southeast Missouri, to May, 1862. 1st Division, Army of Southwest Missouri, to July, 1862. 1st Division, District of Eastern Arkansas, Dept. of Missouri, to November, 1862. 1st Brigade, 1st Division, Army of Southeast Missouri, to March, 1863. 1st Brigade, 14th Division, 13th Army Corps, Dept. of the Tennessee, to July, 1863. 1st Brigade, 1st Division, 13th Army Corps, Dept. of the Tennessee, to August, 1863, and Dept. of the Gulf, to June, 1864. District of LaFourche, Dept. of the Gulf, to February, 1865. 1st Brigade, 1st Division, 16th Army Corps, Military Division West Mississippi, to June, 1865. Dept. of Mississippi, to November, 1865.
SERVICE - Duty at Ironton, Mo., till March, 1862. Expedition to Fredericktown, Mo., October 12-25, 1861. Skirmish at Big River Bridge, near Potosi, October 15. Action at Fredericktown October 21. Moved to Reeve's Station March 3, 1862. Steele's Expedition to White River, Ark., March 23-May 10. March to Batesville, Ark., April 5-May 3, thence to Helena, Ark., May 25-July 14. Action at Hill's Plantation, Cache River, July 7. Duty at and near Helena, Ark., till September 1, participating in numerous expeditious. Action at Totten's Plantation August 2. Prentiss and Bolivar September 24. Friar's Point September 28. Moved to Pilot Knob, Mo., thence to Van Buren, Ark. November 15. Campaign In Southeast Missouri December, 1862, to March, 1863. Ordered to St. Genevieve March 5, and thence to Milliken's Bend, La. Duty there till April 25. Movement on Bruinsburg and turning Grand Gulf April 25-30. Battle of Port Gibson May 1. Battle of Champion's Hill, Miss., May 16. Big Black River Bridge May 17. Siege of Vicksburg, Miss., May 18-July 4. Assaults on Vicksburg May 19 and 22. Surrender of Vicksburg July 4. Advance on Jackson, Miss., July 5-10. Siege of Jackson July 10-17. Duty at Vicksburg till August 20. Ordered to New Orleans, La., August 20. Duty at Carrollton, Brashear City and Berwick till October. Western Louisiana Campaign October 3-November 10. Ordered to New Orleans, La., November 10, thence to Texas November 12. Capture of Mustang Island, Matagorda Bay, November 17. Fort Esperanza November 27-30. Duty at Indianola and Lavacca, Texas, till March, 1864. Veterans on furlough March and April. Moved to New Orleans, La., April 18-29, thence to Brashear City May 17, and duty there and in the District of LaFourche, till February, 1865. Companies "F," "C" and "K," at Bayou Boeuf; Company "I" at Bayou L'Ours; Companies "A" and "D" at Tigerville; Company "G" at Chacahoula; Company "E" at Terre Bonne; Company "B" at Bayou LaFourche, and Bayou des Allemands; Company "H" at Boutte, till March, 1865. Non-Veterans moved north in charge of prisoners via New York September 17, 1864. Mustered out October 11, 1864. Campaign against Mobile and its defences March 18-April 12, 1865. Siege of Spanish Fort and Fort Blakely March 26-April 8. Assault and capture of Fort Blakely April 9. Occupation of Mobile April 12. March to Montgomery April 13-25. Moved to Selma May 10, thence to Meridian, Miss., May 17. Duty at Meridian and Vicksburg till November.
Mustered out November 24 and discharged at Chicago, Ill., December 6, 1865.
Regiment lost during service 2 Officers and 56 Enlisted men killed and mortally wounded and 1 Officer and 250 Enlisted men by disease. Total 309.