Overview
The 140th Ohio Infantry (One Hundred Days’ Service) was an infantry regiment from Ohio that served in the Union Army during the American Civil War. Organized at Gallipolis, Ohio, on May 10, 1864, the regiment was composed primarily of men from the 15th Regiment, Ohio National Guard (Meigs County), and the 20th Regiment, Ohio National Guard (Scioto County). The unit was mustered in for a service term of 100 days and was assigned to duty in the Department of West Virginia.
The 140th Ohio Infantry’s primary role was to perform garrison and guard duties, relieving veteran troops for active campaigning elsewhere. The regiment’s service was concentrated in West Virginia, particularly along the Kanawha and Gauley rivers.
Organization & Service
The 140th Ohio Infantry (One Hundred Days’ Service) was organized at Gallipolis, Ohio, and mustered into federal service on May 10, 1864. The regiment was formed by consolidating men from the 15th and 20th Ohio National Guard regiments. Shortly after organization, the unit was ordered to Charleston, West Virginia, where it relieved veteran Union troops stationed in the area.
Throughout its 100 days of service, the regiment was primarily engaged in frontier duty and the guarding of army stores along the Kanawha and Gauley rivers. The 140th Ohio Infantry did not participate in major field operations or battles but played a supporting role by securing vital supply lines and posts. The regiment remained in West Virginia for the duration of its service and was mustered out at Gallipolis, Ohio, on September 3, 1864.
Research This Regiment Further
If you’d like to explore this unit’s history in more depth, regimental histories and Civil War reference works offer valuable detail.
Engagements & Campaigns
- Guard and garrison duty at Charleston, West Virginia
- Protection of army stores along the Kanawha and Gauley rivers
Casualties
Specific casualty figures for the 140th Ohio Infantry (One Hundred Days’ Service) are not detailed in primary sources. The regiment did not participate in major engagements and primarily performed guard duty.
Field Officers & Commanders
- Colonel Robert B. Wilson
- Lieutenant Colonel Van B. Hibbs
- Major David T. Harkins
Regimental Roster
The full roster of the 140th Ohio Infantry (One Hundred Days’ Service), including officers and enlisted men, is available for genealogical and historical research. This roster provides names, ranks, and additional service details for members of the regiment.
To view the complete roster, visit the 140th Ohio Infantry (One Hundred Days’ Service) Roster page.
Sources & References
- Official Records of the Union and Confederate Armies, Series I
- Ohio Roster Commission, Official Roster of the Soldiers of the State of Ohio in the War of the Rebellion, Vol. 8
- Dyer, Frederick H., A Compendium of the War of the Rebellion
- The Union Army, Vol. 2 (Federal Publishing Company, 1908)