Marianne Viool, de moeder van Wim, was hoogzwanger toen zij weduwe werd. Willem de Hond is op 13 september 1930 gestorven en zijn zoon Wim is op 4 november 1930 geboren.
Marianne Viool was married to Willem de Hond. Willem worked for Aurora and died before the war. Addition of a visitor of the website
In addition, a Jokos file (number 412) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.