Werner Abernau was born in 1901 in Berlin and was a member of the family of Wilhelm Abramczyk and Gertrud Arnheim. Wilhelm Abramczyk, born at Potsdam in 1864, married Gertrud Arnheim of 1877 in Berlin, but it never has become clear whether Werner was their own child or an adopted son, who later changed his name. In documents he was mentioned as “family member” and mid 1920, he resided at the same …