Born ‎30-3-1889 Amsterdam, Netherland, died ‎16-9-1923 Amsterdam, Netherland‎, 33 or 34 years. Daughter of Hendrik Alberts and Antje Koorstra‏

Born ‎28-1-1888 Amsterdam, Netherland, died ‎7- Jun 1960 NY, USA‎, 71 or 72 years, ‎1st marriage to: Hendrika Alberts - Koorstra, ‎2nd marriage/ related to: Rose Hausner, ‎3rd marriage/ related to: Maaike van Kooyk. Son of Benjamin Levie Hakker - Pais and Frederika Samuel Engelsman - Kosman‏