This roster includes the known officers and enlisted men of the 23rd Ohio Infantry (Three Years’ Service), organized by Field & Staff and Companies A through K. Information is drawn from 19th-century state adjutant general reports, the Official Records, and verified regimental histories.
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For an overview of this regiment’s organization, service, engagements, and casualties, see the regiment summary page.
Research This Regiment
If you’re researching ancestors in the 23rd Ohio Infantry (Three Years’ Service), these resources may provide additional historical detail, including regimental histories and Civil War reference works.
Field & Staff
- Colonel William S. Rosecrans – Original commanding officer; promoted to brigadier general.
- Colonel E. Parker Scammon – Succeeded Rosecrans; later promoted.
- Colonel Rutherford B. Hayes – Later promoted to brigadier general; future President of the United States.
- Colonel James M. Comly – Later assumed command.
- Lieutenant Colonel Stanley Matthews – Promoted from major; later served as U.S. Senator and Supreme Court Justice.
- Lieutenant Colonel Russell Hastings – Served as lieutenant colonel.
- Major James P. McIlrath – Served as major.
- Major Edward M. Carey – Served as major.
- Major Harry Thompson – Served as major.
Company A
Records for this company are incomplete in the surviving state adjutant general reports.
Company B
Records for this company are incomplete in the surviving state adjutant general reports.
Company C
Records for this company are incomplete in the surviving state adjutant general reports.
Company D
Records for this company are incomplete in the surviving state adjutant general reports.
Company E
Records for this company are incomplete in the surviving state adjutant general reports.
Company F
Records for this company are incomplete in the surviving state adjutant general reports.
Company G
Records for this company are incomplete in the surviving state adjutant general reports.
Company H
Records for this company are incomplete in the surviving state adjutant general reports.
Company I
Records for this company are incomplete in the surviving state adjutant general reports.
Company K
Records for this company are incomplete in the surviving state adjutant general reports.
Sources & Notes
- Official Records of the War of the Rebellion, Series I, relevant volumes and parts.
- State Adjutant General Report for Ohio (various years; consult volumes for infantry regiments, 23rd Ohio, for muster rolls and officer lists).
- Dyer’s Compendium.
- Fox, “Regimental Losses in the American Civil War.”
- “The Union Army,” Federal Publishing Company, 1908, Volume 2.