Peter and his father Paul Alkan lived at Prinzregentenstr. 81 in Berlin-Wilmersdorf before emigrating to Berlin in the 1930s. Paul Alkan was born in 1888 in Coburg and died in 1964, still residing at Rubensstraat 12 in Amsterdam. (Bundesarchiv Gedenkbuch, Jewish Addressbook Berlin 1931, Amsterdam City Archives Card Files)
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