Born ‎21-9-1911 Amsterdam, Netherland, died ‎23-1-1984 Lenzburg-Arau, Switserland‎, 72 or 73 years. Son of Simon Okker - Schenkkan and Keetje Kloots - Keijser‏

Born ‎27-4-1913 Para-Para, Indonesia, died ‎15-9-1991 Haarlem, Netherland‎, 77 or 78 years