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, a Jokos file (number 20357) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.