Samuël van Zwanenbergh his first wife, Emma Wilhelmina Keizer, died in 1935. He had with her at least three children: Rosetta, Antonetta Sophie and the here mentioned Louis Simon.
Addition of a visitor of the website
In addition, a Jokos file (number 650) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.
A Liro card exists for this person or family. The original cards are kept at the Nationaal Archief (National Archive) at The Hague.