Judith van Sister died on 20 May 1943 in Westerbork transit camp and she was cremated on 21 May 1943. The urn with her ashes was placed on the Jewish cemetry in Diemen on field U, row 5, grave nr. 17
Register van joden die in het kamp Westerbork zijn gecremeerd, 1943-1944; archief van de gemeente We…
In addition, a Jokos file (number 30453) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.