Duty at Camp Morton, Indianapolis, Indiana, guarding prisoners February 22 to June 20, 1862. Left Indiana for Louisville, Kentucky, June 20; then moved to Munfordville, Kentucky, and duty there until September. Siege of Munfordville, September 14–17, 1862. Seven companies captured September 17, paroled, and ordered to Indianapolis. Three companies which escaped capture were detached and guarded the railroad bridge over the Rolling Fork River, near Lebanon; also ordered to Indianapolis. Regiment reorganized at Indianapolis to November. Ordered to Memphis, Tennessee, and duty there until December 20. Sherman's Yazoo Expedition December 20, 1862, to January 3, 1863. Expedition from Milliken's Bend, Louisiana, to Dallas Station and Delhi December 25–26. Chickasaw Bayou December 26–28. Chickasaw Bluff December 29. Expedition to Arkansas Post, Arkansas, January 3–10, 1863. Assault and capture of Fort Hindman, Arkansas Post, January 10–11. Moved to Young's Point, Louisiana, January 17. Expedition to Greenville, Mississippi, and Cypress Bend, Arkansas, February 14–29. Duty at Young's Point and Milliken's Bend until April. Movement on Bruinsburg and turning Grand Gulf April 25–30. Battle of Port Gibson May 1. Battle of Champion Hill May 16. Siege of Vicksburg, Mississippi, May 18-July 4. Assaults on Vicksburg May 19 and 22. Advance on Jackson, Mississippi, July 4–10. Siege of Jackson July 10–17. Moved to New Orleans, Louisiana, August 24. Expedition to New and Amite Rivers September 24–29. Bayou Teche Campaign October 3-November 30. Action at Grand Coteau November 3. Moved to Algiers December 13, then to Texas December 18. Duty at Du Crow's Point and Pass Cavallo until March 1864. Moved to Algiers, Louisiana, then to Alexandria, Louisiana. Red River Campaign April 26-May 20. Retreat to Morganza May 13–20. Duty at Thibodeaux until November, and at Algiers until February 24, 1865. Veterans and recruits were transferred to the
26th Indiana Infantry, February 24. ==Casualties==