Jacob van der Bijl lived seperated from his wife Klara Kool.
Together they had three children. Among them were Samuel and Jozeph.
Stadsarchief Amsterdam, archiefkaart Klara Kool
In addition, a Jokos file (number 50395) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.