Born ‎18 May 1880 Diemen,Netherland, died ‎2 Apr 1943 Sobibor-Biala Podleska, Poland‎, 62 years. Occupation: Butcher. Son of Levie Kats and Hendrika Steinveld‏

Born ‎22-6-1888 Amsterdam, Netherland, died ‎2-11-1942 Auschwitz-Katowice, Poland‎, 53 or 54 years. Daughter of Salomon Poppelsdorf/ Santilhan and Fijtje de Vries/ Sander‏

Born ‎9 Mar 1878 Amsterdam,Netherland, died ‎14 Sep 1942 Auschwitz-Katowice, Poland‎, 64 years. Occupation: Boarding house keeper, ‎1st marriage (divorced) to: Barend Jacob Duis - Sajet, ‎2nd marriage to: Samuel Kats - Steinveld, ‎3rd marriage/ related to: Izaak van Dam, ‎4th marriage to: Hartog Mullem - Mullem. Daughter of Salomon Canes - Polak and Gracia Fles - Gracia‏

Born ‎7- Feb 1874 Groningen-Groningen, Netherland‎. Daughter of Emanuel Izak Meijer/ van Pel and Marie-Maria van Zuiden/ van Leeuwe‏