Betje Velleman was a daughter of Zacharias Velleman and Roosje David Gans. She married Levie Hakker in Amsterdam on 11 June 1884, a son of Jonas Hakker and Sara Kok. Betje and Levie had ten children together; one child has died in infancy; three children have survived the Holocaust but her childr…
In addition, Jokos files (numbers 20361, 20359) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.