Organization

• Organized at Chicago, Ill., and Mustered in September 13, 1861.
• Moved to St. Louis, Mo., September 14-15, thence to Jefferson City, Mo., September 22-25.
• Attached to Sigel's Division, Dept. of Missouri, and Dept. of Missouri, to January, 1862.
• 4th Brigade, Army of Southwest Missouri, to February, 1862.
• 1st Brigade, 1st Division, Army of Southwest Missouri, to June, 1862.
• 1st Brigade, 5th Division, Army of Mississippi, to September, 1862.
• 35th Brigade, 11th Division, Army of the Ohio, to October, 1862.
• 35th Brigade, 11th Division, 3rd Army Corps, Army of the Ohio, to Noyes-Division, 3rd Army Corps, Army of the Ohio, to November, 1862.
• 2nd Brigade, 3rd Division, Right Wing 14th Army Corps, Army of the Cumberland, to January, 1863.
• 2nd Brigade, 3rd Division, 20th Army Corps, Army of the Cumberland, to October, 1863. 1st Brigade, 2nd Division, 4th Army Corps, to August, 1865
• Department of Texas to September, 1865.

Service

• Fremont's advance on Springfield, Mo., October 13-November 8, 1861.
• March to Rolla November 8-19, and duty there till February, 1862.
• Curtis' advance on Springfield, Mo., February 2-13.
• Pursuit of Price into Arkansas February 13-29.
• Battles of Pea Ridge, Bentonville, Leetown and Elkhorn Tavern March 6-8.
• March to Batesville, Ark., April 5-May 3.
• Moved to Cape Girardeau, Mo., thence to Pittsburg Landing May 11-26.
• Siege of Corinth, Miss., May 29-30.
• Pursuit to Booneville May 31-June 12.
• At Rienzi, Miss., till August 26.
• Moved to Cincinnati, Ohio, August 26-September 1, thence to Louisville, Ky., September 17-19, Pursuit of Bragg into Kentucky October 1-16. Battle of Perryville, Ky., October 8.
• March to Nashville, Tenn., October 16-November 7, and duty there till December 26.
• Reconnoissance to Milk Creek November 27. Advance on Murfreesboro December 26-30.
• Battle of Stone's River December 30-31, 1862, and January 1-3, 1863.
• At Murfreesboro till June. Expedition toward Columbia March 4-14.
• Middle Tennessee (or Tullahoma) Campaign June 24-July 7.
• Fairfield June 27.
• Occupation of Middle Tennessee till August 16.
• Passage of the Cumberland Mountains and Tennessee River and Chickamauga (Ga.) Campaign August 16-September 22. Battle of Chickamauga September 19-20.
• Siege of Chattanooga, Tenn., September 24-November 23.
• Chattanooga-Ringgold Campaign November 23-27. Orchard Knob November 23-24.
• Mission Ridge November 25.
• Pursuit to Graysville November 26-27.
• March to relief of Knoxville, Tenn., November 28-December 8.
• Campaign in East Tennessee December, 1863, to February, 1864.
• March to Chattanooga, thence to Cleveland, Tenn., and duty there till May.
• Veterans on furlough February 18 to April 14.
• Atlanta (Ga.) Campaign May 1 to September 8.
• Demonstrations against Rocky Faced Ridge May 8-11.
• Buzzard's Roost Gap May 8-9.
• Demonstration on Dalton May 9-13.
• Battle of Resaca May 14-15.
• Adairsville May 17.
• Near Kingston May 18-19.
• Near Cassville May 19.
• Advance on Dallas May 22-25.
• 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 Mountatn June 10-July 2.
• Pine HIll June 11-14. Lost Mountain June 15-17.
• Assault on Kenesaw June 27.
• Ruff's Station, Smyrna Camp Ground, July 4.
• Chattahoochie River July 5-17.
• Buckhead, Nancy's Creek, July 18.
• Peach Tree Creek, July 19-20. Siege of Atlanta July 22-August 25.
• Flank movement on Jonesboro August 25-30.
• Battle of Jonesboro August 31-September 1.
• Lovejoy Station September 2-6.
• Operations against Hood and Forrest in North Georgia and North Alabama September 29-November 3.
• Nashville (Tenn.) Campaign November-December.
• Columbia, Duck River, November 24-27. Spring HIll November 29.
• Battle of Franklin November 30.
• Battle of Nashville December 15-16.
• Pursuit of Hood to the Tennessee River December 17-28.
• March to Huntsville, Ala., and duty there till March, 1865.
• Operations In East Tennessee March 28-April 19.
• Moved to Nashville, Tenn., and duty there till June.
• Moved to New Orleans, La., June 15-22, thence to Port Lavaca, Texas, July 16-23.
• Camp on La Placido River till September 25.
• Mustered out September 25, 1865.

Casualties

• Regiment lost during service 6 Officers and 129 Enlisted men killed and mortally wounded and 1 Officer and 156 Enlisted men by disease. Total 292.