In addition, Jokos files (numbers 52252, 55548) on this family or other family members are 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 shoe-shop, address: Zeedijk 123 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives