Benjamin de Waal was the son of Elias de Waal and Betje Zadoks. He married in 1905 in Steenwijk to Klara Caroline Keijzer. After her death he married to Rebecca van Gelder.
Addition of a visitor of the website
In addition, a Jokos file (number 55168) 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 12604/13912).