Jacques Hoek and Roosje Prins married in 1908 in Amsterdam.
Stadsarchief Amsterdam, archiefkaart Roosje Prins
In addition, Jokos files (numbers 34009, 53386) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos files reveal that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 5345/10468).