This roster includes the known officers and enlisted men of the 1st Ohio Infantry (Three Months’ Service), organized by Field & Staff and companies when available. Information is drawn from 19th-century state adjutant general reports, the Official Records, and verified regimental histories.
Tip: To search for a soldier’s name on this page, use Ctrl + F (Windows) or Command + F (Mac).
For an overview of this regiment’s organization, service, engagements, and casualties, see the regiment summary page.
Download the Full Regimental Roster (PDF)
Research This Regiment
If you’re researching ancestors in the 1st Ohio Infantry (Three Months’ Service), these resources may provide additional historical detail, including regimental histories and Civil War reference works.
Field & Staff
- Colonel: Alexander McD. McCook
- Lieutenant Colonel: Edwin A. Parrot
- Major: John G. Hughes
Company A – Lancaster Guards
Detailed company-level roster entries are not included in the currently supplied source text.
Company B – Lafayette Guards
Detailed company-level roster entries are not included in the currently supplied source text.
Company C – Dayton Light Guards
Detailed company-level roster entries are not included in the currently supplied source text.
Company D – Montgomery Guards (Dayton)
Detailed company-level roster entries are not included in the currently supplied source text.
Company E – Cleveland Grays
Detailed company-level roster entries are not included in the currently supplied source text.
Company F – Hibernian Guards (Cleveland)
Detailed company-level roster entries are not included in the currently supplied source text.
Company G – Portsmouth Guards
Detailed company-level roster entries are not included in the currently supplied source text.
Company H – Zanesville Guards
Detailed company-level roster entries are not included in the currently supplied source text.
Company I – Mansfield Guards
Detailed company-level roster entries are not included in the currently supplied source text.
Company K – Jackson Guards (Hamilton)
Detailed company-level roster entries are not included in the currently supplied source text.
Sources & Notes
- Official Records of the War of the Rebellion
- Ohio Adjutant General’s Report
- The Union Army, Federal Publishing Company, 1908, Volume 2
- Regimental roster PDF linked above