 Nathan de Vries - KalfBorn 3- jun 1897 Amsterdam, Netherland, died 31-8-1944 Auschwitz-Biala Podleska, Poland, 46 or 47 years. Son of Abraham de Vries and Sara Kalf Marriage/ Related to:  Sophia Eva Bosman - SpeelmanBorn 25-9-1899 Rotterdam, Netherland, died 22-5-1944 Auschwitz-Biala Podleska, Poland, 44 or 45 years. Daughter of Jacob Bosman - van der Sluis and Betje Speelman - Kalf | |||