Leon Wessel and Mietje Slier had two children who during the war, no longer lived with their parents. David Wessel and Keetje Mok-Wessel didn't survive the war.
Addition of a visitor of the website
In addition, a Jokos file (number 33266) 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 12902/15878).
A Liro card remains for this person or family. The cards are now at the National Archives in The Hague.