Izaak Waas, a son of Sander Waas and Eva Slap, married 27 April 1933 in Amsterdam to Elisabeth Pront, a daughter of Hartog Pront and Sara Werkheim.
Izaak had eight siblings, of whom four have been killed during the Holocaust: he himself, 501408, 498515 and 496118.
City Archive of Amsterdam, archive card of Sander Waas and Izaak Waas.
Biography