Jakob Chalem and Martha van Coevorden were childless. Two nephews studying medicine lived with them.
Addition of a visitor of the website
According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, this family had a shoemaker's workshop, address: Ambonplein 26 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives
In addition, a Jokos file (number 4172) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.