Joël Rozenberg was the son of Heiman Rozenberg and Eva Kisch. He had a sister, Bertha, who lived in The Hague. In August 1907 he married Betje Velleman, the daughter of Nathan Velleman and Froukje de Jong. The couple had two children: Eva Johanna and Nathan.
Addition of a visitor of the website
In addition, a Jokos file (number 53841) 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 …