A memorial in Beilen 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.
Joël Denneboom was the son of Abraham Denneboom and Rebekka Rolina Danneboom. Martha Hoogstraal was the daughter of Hartog Hoogstraal and Geertje Nieweg.
Joël Denneboom and Martha Hoogstraal had three children: Elli Hermanna, Carolina Geertje, Geertje Regina. Both Carolina and Geertje lived at the Apeldoornse Bos. Geertje was a nurse there. Addition of a visitor of the website