Born ‎5- sep 1925 Rotterdam, Netherland, died ‎15-6-1987 Aalsmeer, Netherland‎, 61 or 62 years

Born ‎1- feb 1904 Nieuwpoort, Netherland, died ‎17-6-1987 Aalsmeer, Netherland‎, 82 or 83 years. Occupation: M.D., ‎1st marriage to: Alice Johanna Jacobs - van den Brandhof, ‎2nd marriage/ related to: Heintje Berkel. Son of Evert Jan frederik Bon and Catharine de Jong‏