The Heidemann family lived at Griegstr. 5-7 in Berlin Grunewald in the early 1930s. Siegfried is listed as the owner of that house. Prior to emigrating to Holland in the 1930s they lived at Clausewitzstr. 9 in Berlin Charlottenburg. Two of their daughters, Inge Erna (1911-1977) and Marie Louise (1915-1987) were able to emigrate to the USA. Their daughter Herta (1908-1976) emigrated to the UK. (Gedenkbuch Berlins, Berlin Addressbooks, Steuersteckbriefe)
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