Joseph Saphier and Vrouwtje Witteboon married in 1911.
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Joseph Saphier and Vrouwtje Witteboon had another child, who survived the war.
Addition of a visitor of the website
In addition, a Jokos file (number 2986) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.