Karel Emil van Zwanenburg was a son of Salomon van Zwanenburg and Estella Jacobs. His parents passed already way before the war: his mother Estella Jacobs from Zwolle died 23 August 1917 as widow of Salomon Zwanenburg, aged 78 years and was interred in the Jewish Cemetery Toepan in Rotterdam. He had…
In addition, a Jokos file (number 52996) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.
Rosalie Frank was a daughter of Juda Frank and Sophia Hertzdahl. She married Karel Emil van Zwanenburg in 1912.
Stadsarchief Amsterdam, archiefkaart Rosalie Frank