Betje Werkheim was married twice. from the first marriage four children were born, among whom Christina Werkheim. In 1937 she married Harog Waterman, with whom she had three more children.
Amsterdam Municipal Archives; record card of Betje Werkheim
In addition, a Jokos file (number 2812) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.