Register of Deeds
Clark County Courthouse
517 Court
Neillsville, WI. 54450

State Historical Society of Wisconsin
Madison, WI.

The Area Research Center (ARC)
(1860, 1870, 1880, 1890, 1900, 1910, and 1890 vets)

The Marshfield Public Library
(same years as above)

Census data soon to come on the ALHN WI site.  Please check this url for the towns listed.
http://www.wlhn.org/census/index.html
THANK YOU!