Joseph Beem was deported to Sobibor in June 1943 from Vught via Westerbork on the so-called children's transport. He was 8 when he died. J. de Moei, Joodse kinderen in het kamp Vught (Vught 1999) 15
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The mayor of Oss requested that Jozeph Beem, his wife Eva Henriette Alexandra Beem-Toncman and their son Abraham Beem, all residents of Oss, be located, detained and brought to trial. They had changed their place of residence without the required authorization. This description referred to Jews who had gone into hiding. Algemeen Politieblad, nr 50, 17 December 1942, 1416, notice 3169