Adolf Frankenstein was not married and born in Labischin in Mid Poland. In 1937 he came from Berlin to Amsterdam, where he lived at Valeriusstraat 85, where also his sister Sara Frankenstein lived and who was married to Josef Grünfeld from Tarnow (Poland). Josef passed away in 1938 in Berlin, but his spouse Sara survived the war. This couple had a daughter, Fanny Grünfeld, married to Kurt Walter …