Leon Denneboom verbleef in september-begin oktober 1942 in het werkkamp Conrad bij Staphorst.
Zie: Gert-Jan Westhoff, Dwangarbeid in Staphorst. Joodse werkkampen in Staphorst en Rouveen (Kampen 2012), pag. 120.
Leon Denneboom was married in 1915 to Roosjen Cohen and had six children. Eva, Anthonia and Joël, lived at another address. His spouse passed away in 1934. Addition of a visitor of the website
In addition, a Jokos file (number 15797) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.
A memorial in Dedemsvaart commemorates the Jewish victims of this town. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.