They were picked up by police (bureau Stadhouderskade nr. 25) on 27 November 1942 at 20h05. report 331. Amersterdam Archief. On 28th they were sent to Westerbork.
Cornelia Dresden was a daughter of Nathan Dresden and Duifje Orpes. She married Gerrit Gobetz in 1939. Stadsarchief Amsterdam, archiefkaart Nathan Dresden
In addition, a Jokos file (number 5098) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.