Born ‎7- Jul 1904 Antwerpen, Belgium, died ‎9- Apr 1943 Sobibor-Biala Podleska, Poland‎, 38 years. Son of Jacob Biet - Bak and Grietje de Leeuwe - Wijnstok‏

Born ‎22-10-1901 Amsterdam, Netherland, died ‎9- Apr 1943 Sobibor-Biala Podleska, Poland‎, 41 or 42 years. Daughter of Jacob Spijer and Sara de Vries‏