Erik John Frank, born on 11 April 1921 in Rotterdam, was a son of Abraham Frank and Sophia van Geldere. He was working as a shop assistant. His mother, daughter of Joseph van Geldere and Rosa Rosenbach, passed away on 11 June 1928 and his father, a son of Isidore Frank and Grietje Cohen, remarried 31 January 1931 the non-Jewish Gerbrig Hielkema from Sneek, a daughter of Tjeerd Hielkema and Aaltje …