Siemon Hoogstraal was involved in the management of the youth welfare work in the Apeldoornse Bos, where he started working on 1 July 1942.
Municipal Archives Apeldoorn, list of employees of the Apeldoornsche Bosch
Biography
Siemon Hoogstraal was involved in the management of the youth welfare work in the Apeldoornse Bos, where he started working on 1 July 1942.
Municipal Archives Apeldoorn, list of employees of the Apeldoornsche Bosch