Naatje Viskoper was a daughter of Israel (Rolie) Viskoper and Rachel Huisman. She was the widow of Levy Groen, a merchant in second hand furniture. After the marriage the family lived on the Stille Veerkade 21. They then moved several times within The Hague. They had four children: Israël, Rachel, Elias and the here mentioned Schoontje.
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