Born ‎28-4-1889 Amsterdam, Netherland, died ‎28-10-1940 The Hague, Netherland‎, 50 or 51 years. Son of Alexander Hartog Coltof/ Bronkhors and Betje Koch/ Wij‏

Born ‎22-11-1891 The Hague, Netherland, died ‎5- Apr 1947 The Hague, Netherland‎, 55 or 56 years