Rebecca Vierra was a daughter of Isaac Vierra and Klaartje Kalkoene. She was born in a family of ten children, among them she herself and of whom her babysister Elisabeth has died only 2 months old. Her brother Leman (married to Helena Poak) passed away before 1940. All other siblings, David, Marian…
In addition, a Jokos file (number 52808) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.