If the Wilhemina "Minna" Bergmann you are looking for, married to August Mundstock, lived in Vernon County, Wisconsin, I have some information on her. She was born in Pommern, Germany 8 Nov 1856. She married August Johann Mundstock on 25 Oct 1872 in Hamburg Twp, Vernon, Wisconsin. She died on 16 Sep 1930 in La Crosse, La Crosse, Wisconsin. She is buried in the Hamburg Church Cemetery, Hamburg Twp, Vernon, Wisconsin.