Organized at Indianapolis, Ind., August 20-September 5, 1861. Ordered to St. Louis, Mo., September 10. Attached to Fremont's- Army of the West and Dept. of Missouri to January, 1862. 1st Brigade, 3rd Division, Army of Southwest Missouri, Dept. of Missouri, to May, 1862. 1st Division, Army of Southwest Missouri, to July, 1862. District of Eastern Arkansas, Dept. of Missouri, to October, 1862. 2nd Brigade, 1st Division, District of Southeast Missouri, Dept. of Missouri, to March, 1863. 1st Brigade, 14th Division, 13th Army Corps, Army 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 August, 1864. 3rd Brigade, 2nd Division, 19th Army Corps, Army of the Shenandoah, Middle Military Division, to August, 1864. 4th Brigade, 2nd Division, 19th Army Corps, to December, 1864. 1st Brigade, 2nd Division, 19th Army Corps, to January, 1865. 1st Brigade, Grover's Division, District of Savannah, Ga., Dept. of the South, to August, 1865.
SERVICE:
Fremont's advance on Springfield, Mo., September 22-October 15. Camp at Otterville till January 25, 1862. Expedition to Milford December 15-19, 1861. Action at Milford, Blackwater or Shawnee Mound December 18. Curtis' advance on Springfield January 25-February 14, 1862. Pursuit of Price to Cassville, Ark. Battle of Pea Ridge March 6-8. At Sulphur Rock till May. March to Batesville, Ark.; thence to Helena, Ark., May 25-July 14. Action at Hill's Plantation, Cache River, July 7. Expedition to Coldwater, Miss., July 22-25 (Cos. "B," "E"). White Oak Bayou July 24 (Cos. "B," "E"). Austin, Tunica County, August 2. At Helena till October. Ordered to Pilot Knob, Mo., and operations in Southeast Missouri till March 5, 1863. Moved to Helena, Ark., thence to Mijliken's Bend, La. Movement on Bruinsburg and turning Grand Gulf April 25-30. Battle of Port Gibson May 1. Battle of Champion's Hill May 16. Big Black River May 17. Siege of Vicksburg, Miss., May 18-July 4. Assaults on Vicksburg May 19 and 22. Advance on Jackson, Miss., July 4-10. Siege of Jackson, Miss., July 10-17. Duty at Vicksburg till August 20. Ordered to New Orleans, La. Duty at Carrollton, Brashear City and Berwick till October. Western Louisiana "Teche" Campaign October 3-November 8. Moved to New Orleans, La., November 8, thence to Texas November 12. Capture of Mustang Island November 17. Fort Esperanza November 27-30. Duty at Matagorda Bay till February, 1864. Duty at Indianola and Lavacca, Tex., till April. Veterans on furlough April and May. Duty in District of LaFourche, La., till July. Ordered to Washington, D. C. Sheridan's Shenandoah Valley Campaign August 7 to November 28. Berryville, Va., September 3. Battle of Opequan, Winchester, September 19. Fisher's Hill September 22. Battle of Cedar Creek October 19. Duty in the Shenandoah Valley, Virginia, till January, 1865. Moved to Baltimore, Md., January 6-7, 1865; thence to Savannah, Ga., January 14-20. Duty there and at various points in Georgia and South Carolina till August. Mustered out August 28, 1865.
Regiment lost during service 7 Officers and 84 Enlisted men killed and mortally wounded and 5 Officers and 166 Enlisted men by disease. Total 258.