David de Vries was an English teacher. He was the son of Hermanus de Vries en Hendrina Polak. In 1933 he married Celina Polak, who was also a teacher.
Addition of a visitor of the website
In addition, a Jokos file (number 11373) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.