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Izak de Vries, birth 26 Dec 1883 Leiden, died 1 Oct 1942 Auschwitz, occupation: klerk Post en Telegrafie, procuratiehouder, directeur, son of Marcus Joseph de Vries and Esther van Aalbergen
to: Rachel Van Wijnbergen, birth 27 Mar 1889 Amsterdam, died 1 Oct 1942 Auschwitz, occupation: pinano-onderwijzeres, daughter of Jacob Van Wijnbergen and Benvenida Hanna Belinfante |
| 1) Hugo de Vries, birth 7 Aug 1926 Amsterdam, died 31 Jan 1943 Auschwitz |
| 2) Arthur de Vries, birth 30 Nov 1928 Amsterdam, died 1 Oct 1942 Auschwitz |