Elkan and Grietje Spijer had five children, of whom the first born Jacob in 1908 died that same year, just four months old. Their son Joseph lived at another address. Besides Machiel their daughter Rachel and a child that survived the war, and their families, lived at the same address as their parents.
Addition of a visitor of the website
In addition, a Jokos file (number 9870) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.