Born ‎8- May 1891 Amsterdam, Netherland‎. Son of Heijman Barnstein - Zeehandelaar and Rosa Jacob Hilsum‏

Born ‎7- Feb 1892 Amsterdam, Netherland‎. Occupation: ‎5- Mar 1914 Amsterdam, Netherland, ‎1st marriage/ related to: Hartog Barnstein - Hilsum, ‎2nd marriage (divorced) to: Alexander de Vries - Piza. Daughter of Jacob Druijf - Delmonte and Rebecca Ereira - Calo‏