Israel Kool was a son of Emanuel Kool and Marianna Hekster. He married Eva van Bever in Amsterdam on 24 Maart 1926, a daughter of Godfried Salomon van Bever and Esther van Gelder. The couple had no children.
City Archive of Amsterdam, archive cards of Israel Kool, Emanuel Kool and website www.wiewa…
In addition, a Jokos file (number 55862) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.