Wisconsin BIOS
The Madison Library has a nice website. I like the listing under "Wisconsin Local History and Biography Articles." It is searchable, and covers the years 1860-1940.
http://www.scls.lib.wi.us/madison/ref/mpl_history_genealogy.htmlhttp://www.scls.lib.wi.us/madison/ref/mpl_history_genealogy.html
Some Civil War soldiers, WW1 Soldiers, and some Regimental Histories are listed.
Good luck,
Diane G.