Born ‎1748 Amsterdam, Netherland, died ‎1-11-1800 Amsterdam, Netherland‎, 51 or 52 years. Son of Marcus\Mordechai Jacob de Vries and Sara\Serche Isaac\Eizik Weisna‏

Born ‎1752 Amsterdam, Netherland, died ‎1811 Amsterdam, Netherland‎, 58 or 59 years, ‎1st marriage to: Isaac\Eizik Marcus\Mordechai de Vries/ Weisn, ‎2nd marriage (divorced) to: Abraham Isaac Zitter. Daughter of Jacob Isaac\Eizik Weisna/ Moze and Sara Simon‏