Addition

Joseph van Zwaanenburgh and his family

In addition, a Jokos file (number 9505) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.

According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, this family had a grocery shop, address: Nieuwe Herengracht 107 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives