Naatje Lisser was a daughter of David Lisser and Rosa de Hond. 3 December 1919 she married Philip de Beer in Amsterdam, a son of Leendert de Beer and Sara Lisser. 19 June 1920 their daughter Sara was born there.
23 September 1929 the family moved from Amsterdam to Den Haag, were they first were registered at the address Tamarindestraat 56 2nd floor; in 1934 they moved to Galileistraat 84 and p…