The eldest child, Leendert Samuël Wennek, (also known as Wennik), married in 1928 the non-Jeswsh Maria Sophia Frederika Dickhout from Amsterdam, a daughter of Federik Hendrik Dickhout and Maria Sophia Frederika ten Bosch, from whom he was divorced by verdict of the District Court of Amsterdam on 8 …
In addition, a Jokos file (number 53399) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.