Keetje Gobetz was a daughter of Joseph Gobetz and Klara Klijnkramer. She married in Amsterdam on 16 March 1921 to Leendert Kool, son of Levie Kool and Mietje Rine.
City Archive of Amsterdam, archive card of Joseph Gobetz and website www.wiewaswie.nl .
In addition, a Jokos file (number 18749) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.