Sara Knoop and Jozef Wolkenfeld had married young, and lived for a while with Sara’s parents in Boerhaavestraat. A son, Hartog, was born to the couple in 1926. Jozef and his wife sold shoe soles and heels at the Waterlooplein market in Amsterdam.
Addition of a visitor of the website
In addition, a Jokos file (number 4902) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.