Op Thresia's Amsterdamse archiefkaart staan haar ouders niet genoemd. Zij staat echter met de hand bijgeschreven op de archiefkaart van Sophia Simons zonder dat daar haar verwantschap met Sophia wordt genoemd.
According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, this family had a cigar shop, address: Nieuwendijk 109 in Amsterdam. Abstracts of the police archives which are currently at the Amsterdam municipal archives
In addition, a Jokos file (number 53078) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting J…