Born ‎24-7-1887 Gorredijk-Opsterland,Friesland,Neth., died ‎4-12-1975 Arnhem, Netherland‎, 87 or 88 years. Occupation: Store attendant. Son of Izaak Colthof - Colthof and Rebecca Leefsma - Broekhuijsen‏

Born ‎16-1-1893 Zaandam, Netherland, died ‎4-10-1973 Enschede, Netherland‎, 79 or 80 years. Daughter of Izaak Leendert Groen - Muller and Marianne Loonstein - Schrijver‏