Born ‎9- Mar 1883 Rotterdam, Netherland, died ‎11-2-1944 Auschwitz-Biala Podleska, Poland‎, 60 or 61 years. Son of Isaac de Haas/ de Jon and Froukje de Jong/ de Blaau‏

Born ‎27-3-1894 Groenlo, Netherland, died ‎11-2-1944 Auschwitz-Biala Podleska, Poland‎, 49 or 50 years. Daughter of Ernst Heijmans - van Coeverden and Bertha Heimans - Stibbe‏