Born ‎10-10-1920 Rotterdam, Netherland, died ‎31-8-1943 Schoppinitz‎, 22 or 23 years. Son of Jacob Grootkerk and Mietje Droomer‏

Born ‎18-10-1923 Rotterdam, Netherland, died ‎5-10-1942 Auschwitz-Katowice, Poland‎, 18 or 19 years. Daughter of Levie van der Stam - Melhado and Truitje Bobbe - Barendse‏