Ruben Eliasar Friezer and Betje Cohen de Heer married in 1905 in Rotterdam. They had the following children: Jacob, Helena, Leonardus (deceased in 1911), Eliasar Salomon and Izaak Eliasar. They had a sixth child who presumably survived the war.
Addition of a visitor of the website
In addition, a Jokos file (number 7036) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 3650/16874).