This person is commemorated on a memorial in Vijfhuizen and on a memorial in Heerlen. More information on these memorials can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.
The police commissioner of Heerlen requested that Silvin Bonem, a merchant, and his wife Ella Bonem-Israel, both residing in Heerlen, be located, detained and brought to trial. They were suspected of having changed their place of residence without obtaining the required authorization. This description referred to Jews who had gone into hiding. Algemeen Politieblad, nr 37, 17 September 1942, 1045, …