Archives and Area Research Center
University Library - 5th Floor
University of Wisconsin - Stevens Point
900 Reserve Street
Stevens Point, Wisconsin 54481
We used the facility this summer with great success. Good organization, nice folks. they'll do mail requests too.
A couple more possibilities, in case you're not familiar with them:
Waupaca Public Library
Waupaca, Wisconsin 54981
They have microfilm of the recorded cemeteries in central Wisconsin, including Waupaca, Waushara and Wood. also much of the area census (Federal and State). Also newspapers. They'll do mail lookups.
Register of Deeds
Waushara County Court House
Wautoma, Wisconsin 54982
Births, deaths, marriages, military, etc. records.
Kay Scholtz wrote the UWSP about Probate Records and this is the response she received.
Waushara County Probate Records are at the State Historical Society in Madison, "They are an unprocessed collection and the inclusive dates are 1868-1939. RLIN # is WIHV88-A276. You should contact the State Historical Society to see when they might be available. State Historical Society, 816 State Street, Madison, WI. 53706, or 1-608-264-6535 (reference desk)." This from Bonnie Price UWSP Archives.
That's Kay for letting us have this information. It all helps.