Born ‎2- Mar 1886 Amsterdam, Netherland, died ‎1-10-1942 Auschwitz-Biala Podleska, Poland‎, 55 or 56 years. Occupation: Postman. Son of Isaac Grootkerk - Kloos and Aaltje Blog‏

Born ‎19-6-1891 Amsterdam, Netherland, died ‎21-5-1943 Sobibor-Biala Podleska, Poland‎, 51 or 52 years. Daughter of Abraham Barend Hakker/ van Gelde and Sara Busnach/ Schaa‏