In addition, a Jokos file (number 50451) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 93/7832).
According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, this family had a bookshop, address: Beethovenstraat 69 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives