David Vierra was a son of Isaac Vierra and Klaartje Kalkoene. He was born in a family of 10 children, among them he himself, a babysister Elisabeth who died only 2 months old in 1905. His brother Lehman (married to Helena Polak) passed away before 1940. Al his other siblings, Marianne, Israel, Will…
In addition, a Jokos file (number 32087) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.