103rd Regiment, Ohio Infantry
United States 
U.S. Military Ohio Ohio Military Ohio in the Civil War Ohio Civil War Union Units 66th through 115th 103rd Regiment, Ohio Infantry
Brief History
The 103rd Regiment was organized at Cleveland, Ohio, August, 1862. It had duty at Raleigh, North Carolina, and in the Department of North Carolina until June. The regiment mustered out June 12, 1865[1].
The Wikipedia article, 103rd Ohio Infantry, has history for this regiment and additional sources.
Companies in this Regiment with the Counties of Origin
Men often enlisted in a company recruited in the counties where they lived though not always. After many battles, companies might be combined because so many men were killed or wounded. However if you are unsure which company your ancestor was in, try the company recruited in his county first.
Other Sources
Internet site, 103rd Ohio Infantry, by Larry Stevens has brief histories and references for this regiment.
References
- ↑ National Park Service, The Civil War Soldiers and Sailors System (accessed 4 December 2011).