Jacob Boeken was a son of Isaäc Boeken (1865-1940) and Mietje Brander (1863-1899). Neeltje Koster was his stepmother.
Stadsarchief Amsterdam, archiefkaart Isaäc Boeken
Jacob Boeken and his wife Marianne van Emrik had 9 children, 3 died at a young age befor the war, 3 died during and because of the war and 3 children survived the war.
Addition of a visitor of the website
In addition, a Jokos file (number 36426) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.