Joseph Fontijn was a son of Isaac Fontijn. Joseph Fontijn married Rebekka Dribbel on 5 December 1918. The ceremony took place in Amsterdam. Addition of a visitor of the website
In addition, a Jokos file (number 9346) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 3336/359 + 3337/2446).