This person is commemorated on a memorial in Nijkerk. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.
These persons are listed as residing at the same address. The source does not provide information about how they were related to one another.
In addition, a Jokos file (number 9031) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.