Philip Joosten died on 6 July 1943 in Westerbork transit camp and he was cremated on 7 July 1943. The urn with his ashes was placed on the Jewish cemetry in Diemen on field U, row 9, grave nr. 15.
Register van joden die in het kamp Westerbork zijn gecremeerd, 1943-1944; archief van de gemeente Weste…
In addition, a Jokos file (number 2923) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.