Joël Vorst was married to Reeltje Cohen. The couple lived at 46b Mariaplaats in Utrecht. Joël Vorst was a manufacturer.
Amsterdam municipal archive, Records Jokos, Möbel-claim 18308; property Joods Maatschappelijk Werk
In addition, a Jokos file (number 18308) 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 3342/8457).