This person is commemorated on a memorial in Assen. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.
Reeltje Nijstad was married to Jonas Vos. Addition of a visitor of the website
In addition, a Jokos file (number 13612) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.