 Willem Eleazar Koster - OostraBorn 23-9-1863 Medemblik, Belgium, died 16-11-1920 Amsterdam, Netherland, 56 or 57 years. Occupation: Musician. Son of Eliazar William Koster - Polak and Rachel Hartog Oostra - Nias Married 21-9-1894 Hoorn, Netherland (25 or 26 years married) to:  Feijtje Bremer - KosterBorn 6- feb 1865 Hoorn, Netherland, died after 16-11-1920, at least 55 years. Daughter of Juda Levie Bremer - Prins and Judith Koster - Polak | |||