Born ‎25-5-1900 Rotterdam, Netherland, died ‎23-7-1943 Sobibor-Biala Podleska, Poland‎, 42 or 43 years. Daughter of Mozes Zwarenstein - Hijmans and Grietje Heiman Parfumeur - van Embden‏

Born ‎22-4-1884 Opsterland, Netherland, died ‎23-7-1943 Sobibor-Biala Podleska, Poland‎, 58 or 59 years. Occupation: Cantor, religion teacher, ‎1st marriage to: Sara Hillesum - Lehmann, ‎2nd marriage/ related to: Johanna Geertruida Zwarenstein - Parfumeur. Son of Benjamin Jozefs Leefsma/ Leefsm and Elize Nanette Jacobs - de Beer‏