According to the "Sterbebücher" (death records) of Auschwitz, Philip Ritmeester was murdered there on 22 August 1942. This date is different from the official date of death as determined by the Dutch Ministry of Justice after the war. For the time being, the website joodsmonument.nl, list only the dates of death, as published at the time in the "Nederlandse Staatscourant" (Dutch Government Gazette) by the Ministry of Justice.
Death of Philip Ritmeester as recorded in the death index (Sterbebücher) of Auschwitz.
Official death certificate nr. 555 dated 4 August 1950 for Philip Ritmeester.