Susanna Verduin was a daughter of Barend Verduin and Rebekka Rosenbach. She married Simon Verduin on 4 May 1932. City Archive of Amsterdam, archive card of Barend Verduin.
In addition, a Jokos file (number 34236) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.