Rob Reens was a son of Izak Reens and Judith Zwartverver, who were married in Amsterdam on 20 May 1931 and who both have survived the Holocaust. His grandparents were Barend Reens and Rosette Velmans, who did not survive the war.
City Archive of Amsterdam, archive card of Izak Reens and tomb stone o…
In addition, a Jokos file (number 16974) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.