Overview
The 145th 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 Camp Chase, Ohio, the regiment was mustered into federal service on May 12, 1864, for a term of 100 days. The unit was composed of men from the 21st Battalion, Ohio National Guard (Delaware County), and the 13th Battalion, Ohio National Guard (Erie County). Its primary role was to provide garrison and fatigue duty in the defenses of Washington, D.C.
This regiment served exclusively in the Eastern Theater, contributing to the security of the nation’s capital during a critical period of the war.
Organization & Service
The 145th Ohio Infantry (One Hundred Days’ Service) was organized at Camp Chase, Ohio, and mustered into service on May 12, 1864. Shortly after organization, the regiment was ordered to Washington, D.C., where it was assigned to the command of General Christopher C. Augur. The regiment was stationed at Forts Whipple, Woodbury, Tillinghast, and Albany, all part of the southern defenses of Washington on Arlington Heights.
The primary duties of the regiment consisted of garrison and fatigue work, helping to maintain the fortifications and ensure the security of the capital during the summer of 1864. The regiment did not participate in any major field engagements. On August 20, 1864, with its term of service expired, the regiment was transported by rail to Baltimore and then via the Northern Central and Pennsylvania Central railroads back to Camp Chase, Ohio. The 145th Ohio Infantry was mustered out of service at Camp Chase on August 24, 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
- Garrison duty at Forts Whipple, Woodbury, Tillinghast, and Albany, Arlington Heights, Washington, D.C. (May–August 1864)
Casualties
Specific casualty figures for the 145th Ohio Infantry (One Hundred Days’ Service) are not detailed in primary sources. The regiment’s service was limited to garrison duty, and no major combat losses are recorded.
Field Officers & Commanders
- Colonel Henry C. Ashwill
- Lieutenant Colonel Lloyd A. Lyman
- Major Henry C. Olds
Regimental Roster
The complete roster of the 145th Ohio Infantry (One Hundred Days’ Service), including officers and enlisted men, is available on the regiment’s roster page. This resource provides names, ranks, and additional service details valuable for genealogical research.
To view the full roster, visit the 145th Ohio Infantry (One Hundred Days’ Service) Roster page.
Sources & References
- Official Records of the Union and Confederate Armies, Series I, Vol. XXXVII
- 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)