Born ‎11-12-1919 Amsterdam, Netherland, died ‎30-9-1942 Auschwitz-Biala Podleska, Poland‎, 22 or 23 years. Son of Samuel Sem Koperberg - Vreeland and Sara Fles - Fles‏

Born ‎19-11-1920 Amsterdam, Netherland, died ‎30-9-1942 Auschwitz-Biala Podleska, Poland‎, 21 or 22 years. Occupation: Seamstress. Daughter of Barend Blits - Polak and Alida Koperberg - Vreeland‏