Grietje Engelsman was a daughter of Isaac Engelsman and Rebekka van der Sluis. She married Abraham Polak on 26 September 1934 in Amsterdam, who was just divorced from Sophia Koen.
Grietje and Abraham had together a daughter in 1936: Lida.
City Archive of Amsterdam, archive card of Abraham Polak .
In addition, a Jokos file (number 31937) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.