You wrote: I'm also looking for a Jewish Zimmerman, a Berta (or Bertha) Zimmerman (or Zimmermann) who was born either in Germany, the former Austria-Hungary or the former Czechoslovakia, and who emigrated to this country (I don't know to what city or state) from Munich, Germany in 1952, at the age of 33 (she was born on 10-19-19). The name Bertha does not appear in my database. My focus is much earlier than the 1950's. None of mine come from Germany or Slovokia. Other family names connected with my Zimmerman are Feldman and Kristal...many went to Wisconsin. Lois