Born ‎10-9-1891 Amsterdam, Netherland, died ‎28-5-1927 The Hague, Netherland‎, 35 or 36 years. Daughter of Abraham Jonas Hakker/ Ko and Anna Zacharias Velleman/ Gan‏

Born ‎18-10-1888 Amsterdam, Netherland, died ‎7- May 1943 Sobibor-Biala Podleska, Poland‎, 54 or 55 years. Son of David Cohen de Boer/ de Boe and Anna Julia Judels/ Drukke‏