Sara van Gelder-van Geldere was the mother of Jacob Henri van Gelder, Betsy Estella van Gelder (Brieko), Elly van Gelder, Martin Arnold van Gelder en Hendrika Maas-van Gelder. They lived Roerstraat 115-I Amsterdam. She was married to Arnold van Gelder and survived the Holocaust by hiding in Friesland, together with her husband. Only one of their daughters, Betsy Estella Brieko-van Gelder survived the Holocaust by hiding.
Elly van Gelder had been hiding in Groningen, With Ds Ader and his wife. They went back to Amsterdam and were betrayed.
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