Esther Wijnschenk, a daughter of Aron Wijnschenk and Leentje Korper, married in Amsterdam on 17 April 1912 to Hartog de Jong, a son of Abraham de Jong and Maaike Cohen. website www.wiewaswie.nl.
In addition, a Jokos file (number 3515) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.