Olga Löwenthal was the daughter of Abraham Löwenthal and Sara Frank.
She was the widow of Emanuel de Vries. They had five children: Henriette, Sara, Julie, Roosje and Isidoor Izak.
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In July 1940, an obituary was placed for her in the Nieuw Israëlietisch Weekbladl.
Nieuw Israëlietisch Weekblad, 12 juli 1940
The funeral records at the Jewish cemetery in Leeuwar…
