Simon Klijnkramer was previously married to Elisabeth Hagenaar. With her he had the here mentioned son Gerrit. In January 1940 Elisabeth died in childbirth. The child, who was taken in by family, survived the war.
Addition of a visitor of the website.
In addition, a Jokos file (number 20188) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.