Izak Os was married to Lea Spits. He represented the SDAP on the Zwolle city council. Even as a socialist, Izak Os did not condemn religion. He continued to go to shul, if only to socialize. His wife did not keep strictly kosher but did not allow pork or eel in her house.
Izak Os had advanced from working in food, textile and travelling sales to a businessman. His addresses attest to this improvement, such as 30 Jufferenwal in Zwolle, which was already a rather affluent area. His subsequent move to the Wilhelminasingel reveals that Izak Os was did well financially.
//I. Cornelissen, Ode aan een slecht mens. Oom Jopie uit de mediene (Amsterdam 1991)-1991, 48, 50;
D. Stibbe and J. Hagedoorn, Herinneringsboek joods Zwolle 1940-1945 (Zwolle 1995) 7//
In addition, a Jokos file (number 10405) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.