31st Ohio Infantry

== Regimental History and Service Record ==
Organized at Camp Chase, Columbus, Ohio, August 4, 1861. Left State for Louisville, Ky., September 27, thence moved to Camp Dick Robinson, Ky., October 2, and duty there until December 12. Attached to Thomas' Command, Camp Dick Robinson, Ky., to November, 1861. 12th Brigade, Army of the Ohio, to December, 1861. 12th Brigade, 1st Division, Army of the Ohio, to January, 1862. 1st Brigade, 1st Division, Army of the Ohio, to September, 1862. 1st Brigade, 1st Division, 3rd Corps, Army of the Ohio, to November, 1862. 1st Brigade, 3rd Division, Center 14th Army Corps, Army of the Cumberland, to January, 1863. 1st Brigade, 3rd Division, 14th Army Corps, to July, 1865.
SERVICE.--March to Somerset, Ky., December 12, 1861, and to relief of Gen. Thomas at Mill Springs, Ky., January 19-21, 1862. Moved to Louisville, Ky., February 10-16, thence to Nashville, Tenn., February 18-March 2. March to Savannah, Tenn., March 20-April 8. Advance on and siege of Corinth, Miss., April 29-May 30. Pursuit to Booneville May 31-June 6. March to Iuka, Miss., with skirmishing June 22, thence to Tuscumbia, Ala., June 26-28, and to Huntsville, Ala., July 18-22. Action at Trinity, Ala., July 24 (Co. "E"). Courtland Bridge July 25. Moved to Dechard, Tenn., July 27. March to Louisville, Ky., in pursuit of Bragg August 21-September 26. Pursuit of Bragg into Kentucky October 1-15. 
* October 8, 1862 - Battle of Perryville, Kentucky 
March to Nashville, Tenn., October 22-November 6, and duty there until December 26. Advance on Murfreesboro December 26-30. Battle of Stone's River December 30-31. 1862, and January 1-3, 1863. Duty at Murfreesboro until March 13, and at Triune until June. Middle Tennessee or Tullahoma Campaign June 23-July 7. Hoover's Gap June 24-26. Occupation of Middle Tennessee until August 16. 
* August 16-September 22, 1863 - The Chickamauga Campaign
** September 19-September 20, 1863 - Battle of Chickamauga, Georgia
* September 24-October 27, 1863 - Siege of Chattanooga, Tennessee
* Sequatchie Valley October 5.
* Reopening Tennessee River October 26-29.
* Brown's Ferry October 27. 
* November 23-27, 1863 - The Chattanooga/Ringgold Campaign
** Orchard Knob November 23
** Mission Ridge November 24-25.
* Duty at Chattanooga until February, 1864, and at Graysville until May. 
* May 1-September 8, 1864 - The Atlanta Campaign
** Demonstrations on Rocky Faced Ridge May 8-11. 
** May 14-May 15, 1864 - Battle of Resaca, Georgia
** Advance on Dallas May 18-25. 
** May 25-June 5, 1864 - Operations in Bartow County, Georgia
** Operations about Marietta and against Kenesaw Mountain June 10-July 2. 
** Pine Mountain 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. 
** Peach Tree Creek July 19-20. 
** July 22-August 25, 1864 - Siege of Atlanta, Georgia
** Utoy Creek August 5-7. 
** Flank movement on Jonesboro August 25-30. 
** Battle of Jonesboro August 31-September 1. 
* Operations against Hood in North Georgia and North Alabama September 29-November 3. 
* November 15-December 21, 1864 - The Savannah Campaign
** Near Milledgeville November 23. 
** December 10-21, 1864 - Siege of Savannah, Georgia
* January 1-April 26, 1865 - The Carolinas Campaign
** Fayetteville, N. C., March 11. 
** Battle of Bentonville March 19-21. 
** Occupation of Goldsboro March 24. 
** Advance on Raleigh April 10-14. 
** 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 5, and duty there until July. 
* Mustered out July 20, 1865.
== Regimental Roster ==
== Regiment Statistical Information ==
* Regiment lost during service 2 Officers and 77 Enlisted men killed and mortally wounded and 1 Officer and 153 Enlisted men by disease. Total 233.
== Legacy ==
== Notes ==
== Sources == 
* (Pages 701, 703, 705, 707, 715, 721, 723, 733, 834, 860, 862, 866, 1511)
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