Born ‎± 1891‎. Son of Salomon de Zwarte - Knokker and Sara Eliza Kleermaker‏

Born ‎5-10-1892 Amsterdam, Netherland, died ‎15-12-1942 Auschwitz-Biala Podleska, Poland‎, 49 or 50 years. Daughter of Abraham Isaac Jas/ Susa and Judith Jacob Stodel/ Glasslijpe‏