Born ‎10-7-1884 Amsterdam, Netherland, died ‎23-11-1942 Auschwitz-Katowice, Poland‎, 57 or 58 years

Born ‎4- jun 1880 Amsterdam, Netherland, died ‎23-11-1942 Auschwitz-Katowice, Poland‎, 61 or 62 years, ‎1st marriage to: Rachel Halverstad - Witsenhuijzen, ‎2nd marriage to: Klaartje Halverstad/ Witsenhuijze, ‎3rd marriage/ related to: Jansje Peeper. Son of Sander Isaac Ketellapper/ van Praa and Margaretha Sweet‏