Betje van Ploeg, a daughter of Aron van Ploeg and Hendrina de Jong, married 12 July 1916 in Amsterdam to Ruben Salomon Swaab, a son of Salomon Levie Swaab and Sara Swaab. website www.wiewaswie.nl.
In addition, a Jokos file (number 8677) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.