 Maria Koen - de VriesBorn 18-8-1912 Watergraafsmeer, Netherland, died before 1943, at most 31 years. Daughter of Aaron Koen - Jolis and Beletje de Vries Marriage/ Related to:  Mozes Davidson - van LeeuwenBorn 13-4-1905 Amsterdam, Netherland. Occupation: Bank clerk. Son of Nathan Davidson and Maria van Leeuwen | |