Your information is correct. There was a Czech population that settled in the area around Taus. Many settled in Cooperstown, Franklin and Kossuth Townships. Most were Catholic and there are numerous cemeteries where Czech names are common (St. Wenceslaus/Greenstreet Cemetery, Kossuth Bohemian Cemetery, and St. Joseph's Catholic Cemetery to name a few).
My Czech ancestors attended St. Joseph's Catholic church in the village of Kellnersville.