Elisabeth Ketellapper was a daughter of Salomon Ketellapper and Judith Sweijd, a family with six more children: Susanna, Vrouwtje, Debora, Marie, Levie and Nathan. She married to Hartog Lap in Amsterdam Watergraafsmeer on 30 August 1922.
City Archive of Amsterdam, family registration-card of Salomon Ketellapper and website wiewaswie.
Biography