Of Filippus Izaäk de Vries, four letters remain which he wrote from camp Vught to his wife. Three of the letters are dated, 5 September 1943, 19 September 1943 and 17 October 1943. Furthermore, there is a notification from the Dutch Red Cross that Filippus Izaäk de Vries was transported from Westerbork to Auschwitz on 15 November 1943 and that he died there on 18 November 1943.
Records concentration camp Vught; file N.M.K.V., correspondence
We have been unable to determine whether one or more members of this family survived the war. While their names do not appear on the lists of survivors, we have not been able to trace them in In Memoriam either. They are therefore labeled as 'surviving' and their names are not listed.