Organized at Dubuque and mustered in September 24, 1861. Ordered to St. Louis, Mo. Attached to Dept. of Missouri October, 1861, to January, 1862. Unattached, Army of Southwest Missouri, to February, 1862. 2nd Brigade, 4th Division, Army of Southwest Missouri, to May, 1862. 2nd Division, Army of Southwest Missouri, to July, 1862. District of Eastern Arkansas, Dept. of Missouri, to November, 1862. 3rd Brigade, 1st Division, District of Eastern Arkansas, Dept of Tennessee, to December, 1862. 3rd Brigade, 11th Division, Right Wing 13th Army Corps (Old), Dept. of Tennessee, to December, 1862. 3rd Brigade, 4th Division, Sherman's Yazoo Expedition, to January, 1863. 3rd Brigade, 1st Division, 15th Army Corps, Army of Tennessee, to September, 1863. 2nd Brigade, 1st Division, 15th Army Corps, to September, 1864. 3rd Brigade, 1st Division, 15th Army Corps, to July, 1865.
Moved to Franklin, Mo., October 11, 1861, and duty there guarding railroad till January, 1862. Curtis' advance on Springfield, Mo., January 23-February 12, 1862. Pursuit of Price to Cassville, Ark., February 13-16. Sugar Creek February 17. Battles of Pea Ridge, Ark., March 6, 7 and 8. March to Batesville April 5-May 3, and to Helena, Ark., May 25-July 14. Duty at Helena till December. Expedition from Helena to Arkansas Post November 16-21. Sherman's Yazoo Expedition December 22, 1862, to January 2, 1863. Chickasaw Bayou December 26-28, 1862. Chickasaw Bluffs December 29. Expedition to Arkansas Post, Ark., January 3-10, 1863. Assault on and capture of Fort Hindman,
Arkansas Post, January 10-11. Moved to Young's Point, La., January 17-23, and duty there till April. Expedition to Greenville, Black Bayou and Deer Creek April 5-14. Black Bayou April 10. Demonstration on Haines and Drumgould's Bluffs April 25-May 2. Snider's Bluff April 30. Moved to join army in rear of Vicksburg, Miss., May 2-14. Battle of Jackson May 14. Siege
of Vicksburg, Miss., May 18-July 4. Assaults on Vicksburg May 19 and 22. Advance on Jackson, Miss., July 5-10. Siege of Jackson July 10-17. Brandon Station July 19. At Big Black till September 22. Moved to Memphis, thence march to Chattanooga, Tenn., September 22-November 20. Operation on the Memphis & Charleston Railroad in Alabama October 20-29. Cherokee Station October 21 and 29. Cane Creek October 26. Tuscumbia October 26-27. Battles of Chattanooga November 23-27; Lookout Mountain November 23-24; Mission Ridge November 25; Taylor's Ridge,
Ringgold Gap, November 27. March to relief of Knoxville November 28-December 17. At Woodville, Ala., till April, 1864. Atlanta (Ga.) Campaign May 1-September 8. Demonstration on Resaca May 8-13. Battle of Resaca May 14-15. Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church and Allatoona Hills May 25-June 5. Operations about Marietta and against Kenesaw Mountain June 10-July 2. Assault on Kenesaw June 27. Nickajack Creek July 2-5. Chattahoochie River July 6-17. Battle of Atlanta July 22. Siege of Atlanta July 22-August 25. Ezra Church, Hood's second sortie, July 28. Flank movement on Jonesboro August 25-30. Battle of Jonesboro August 31-September l. Lovejoy Station September 2-6. Pursuit of Hood into Alabama October 1-26. Snake Creek Gap October 15. Ship Gap October 16. March to the sea November 15-December 10.
Griswoldsville November 22. Ogeechee River December 7-9. Siege of Savannah December 10-21. Campaign of the Carolinas January to April. 1865. Reconnoissance to Salkehatchie River January 25, 1865. Salkehatchie Swamps, S. C., February 3-5. South Edisto River February 9. North Edisto River February 12-13. Congaree Creek February 15. Columbia February 16-17. Battle of
Bentonville, N. C., March 20-21. Occupation of Goldsboro March 24. Advance on Raleigh April 10-13. Occupation of Raleigh April 14. Bennett's House April 26. Surrender of Johnston and his army. March to Washington, D. C., via Richmond, Va., April 29-May 20. Grand Review May 24. Moved to Louisville, Ky., June. Mustered out July 18, 1865.
Regiment lost during service 12 Officers and 142 Enlisted men killed and mortally wounded and 2 Officers and 230 Enlisted men by disease. Total 386.