Joseph de Leon was deported to Sobibor in June 1943 from Vught via Westerbork on the so-called children's transport. He was 16 when he died.
J. de Moei, Joodse kinderen in het kamp Vught (Vught 1999) 50
In August 1941 Joseph de Leon was enrolled in the first year of the programme for fitters of the…
In addition, a Jokos file (number 21056) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.