Jacob Mozes Jacobson and Hanna Beer married in 1905 in Amsterdam. They had two children, among whom Isidore Joseph.
Stadsarchief Amsterdam, archiefkaart Jacob Mozes Jacobson
In addition, a Jokos file (number 53767) 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 fo…