Marcus van Kleef and Marie Jessurun de Oliveira married in 1926 in Amsterdam.
Stadsarchief Amsterdam, archiefkaart Marie Jessurun de Oliveira
In addition, a Jokos file (number 13377) 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 6422/16391).