Johanna van Straten was a daughter of Hartog van Straten and Judik Henriëtte Hartog. She had six other brothers and sisters, among them Elizabeth and Adelina.
Municipal Archive of Rotterdam, family registration card of Hartog van Straten .
These persons are listed as residing at the same address. The source does not provide information about how they were related to one another.
In addition, a Jokos file (number 12627) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods…