100th Regiment, Ohio Infantry

Brief History
The 100th Regiment was organized at Toledo, Ohio, July to September, 1862. It had duty at Greensboro, N. C. until June. It mustered out June 20 and was discharged at Cleveland, Ohio, July 1, 1865.

The Wikipedia article, 100th Ohio Infantry, gives a brief history of the unit, including places served, battles fought, and commanders.