Margaretha Fontijn was a daughter of Isaac Fontijn. She married Isaac Komkommer on 7 June 1917. The ceremony took place in Amsterdam. Addition of a visitor of the website
In addition, Jokos files (numbers 11342, 11343) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.