Aäron and Esther Ziekenoppasser were brother and sister. Aäron Ziekenoppasser worked at the factory N.V. Veiligglas on the Realengracht. The factory was started by a brother who survived the war.
Addition of a visitor of the website.
In addition, Jokos files (numbers 13880, 3146) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.