Marie Anna de Jong was a daughter of Izaak de Jong and Rebekka Frank. The family had 11 children. four siblings lived together in a house in Waspik. Three of them survived the war.
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See for additional informatien:
L. Baaten, Geschiedenis van de joodse familie De Jong en Paul Hitschman, in: 'Op 't goede spoor', uitgave van de Heemkundekring Waspik, Themanummer 13, 5 mei 2005