Born ‎1850‎. Daughter of Samuel Benedictus Boas - Roos and Aaltje Cohen‏

Born ‎23-8-1844 Leeuwarden-Friesland, Netherland‎, ‎1st marriage to: Hester Frenkel - Keizer, ‎2nd marriage to: Aaltje Boas - Cohen. Son of Abraham Jacobs Bierschenk - de Leeuw and Berendje Berentje Goudsmit - Poedel‏