Joseph Reens married Judith van Thijn in 1893 in Amsterdam. She passed away in 1939. They had eight children: Eliazer, Vrouwtje (who passed away in 1899), Jacob, Abraham, Benjamin, Levie and two children who survived the war.
Stadsarchief Amsterdam, archiefkaart Joseph Reens
In addition, a Jokos file (number 52402) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.
Addition