Jacob Gosler and Aaltje van Hasselt married on 18th December 1901. They had four children. The eldest son, Joel, died short after his birth. Two married children survived the war.
Addition of a visitor of the website
In addition, a Jokos file (number 32005) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.