Simon de Vries was a son of Manus de Vries and Clara Bilderbeek. He married 6 May 1920 in Amsterdam Maria d’Oliveira, a daughter of Isaac d’Oliveira and Henriëtte van Gelderen. The couple had two children, namely Clara in 1922 and Isaac in 1924. Both the children have survived the Holocaust.
Simon de Vries was a vendor of haberdasheries. Between 1923 and 1936 he had a stand at the streetmarket at …