45th Regiment, Wisconsin Infantry.

''United States  U.S. Military   Wisconsin     Wisconsin Military   Wisconsin in the Civil War 45th Regiment, Wisconsin Infantry

Brief History
Organized at Madison, Wisconsin, November 8, 1864. Mustered out July 17, 1865

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.