Addition

Jacob Biet and his family

Jacob Biet and Jetje Cartoef had three children: Hartog Jacob and two children who survived the war. The surviving children were in hiding. They were betrayed by members of the NSB. They were sent to Westerbork, where they stayed till liberation day.
Addition of a visitor of the website

In addition, a Jokos file (number 32931) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.

According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, this family had an electric supply shop, address: Plantage Kerklaan 26 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives