From 1 August 1921 Jacob van Essen owned a trade –and later also a shop- in fancy goods, named 'Firma J. van Essen en Zn' on the Spoelstraat 34 in Zwolle. His oldest son was co-owner, but left the business in January 1923. The business moved to the Voorstraat 14 in Zwolle. After Jacob and his family…
In addition, a Jokos file (number 2652) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.