We are looking for information of parents/ siblings of Theresa Onasch b. 8 Sep 1871 in West Prussia, father Charles, mother Albertina Pohist or Pokist. Grandmother married Christian Carl(Charles)Plapp in Milwaukee 5 May 1894. 3 sons born there then moved to Winona Co.,MN d. April 1943. Her brother Albert? was a Milwaukee policeman. Sister Clara?Thanks.