I'am searching for my ancestry in germany: Do you know anything about Johann Jürgen Friedrich Luhmann, born in Hamburg on December 9, 1835 - married Regine, Helene Eleonore Classen, or Jürgen Friedrich Luhmann, born in Bohndorf on March14, 1789 - married Maria Meier ,or Johann Heinrich Luhmann, died before 1830 - married Anna Dorothea Meyer?