Born ‎29-12-1880 Amsterdam, Netherland, died ‎31-8-1942 Auschwitz-Biala Podleska, Poland‎, 61 or 62 years. Occupation: Dentist. Son of Zacharias Hijman Swaap - Korper and Kaatje Catharina Groen - Citroen‏

Born ‎7 Jul 1885 Hoorn,Netherland, died ‎31-8-1942 Auschwitz-Biala Podleska, Poland‎, 56 or 57 years, ‎1st marriage to: Jacob Kanes - Italianer, ‎2nd marriage to: Hijman Jacob Swaap - Groen. Daughter of Levie de Vries - van der Sluijs and Sophia Bremer - Onderwijzer‏