Born ‎1860‎. Son of Samuel Benedictus Boas - Roos and Aaltje Cohen‏

Born ‎15-1-1872 The Hague, Netherland‎, ‎1st marriage to: Elias Horneman - Davidson, ‎2nd marriage to: Jacob Samuel Boas - Cohen. Daughter of Philips Jacob Maas and Branca Frank‏