Nathan van Os was deported to Sobibor in June 1943 from Vught via Westerbork on the so-called children's transport. He was 13 when he died. J. de Moei, Joodse kinderen in het kamp Vught (Vught 1999) 59
Isaäc van Os married Frederica Polak in Amsterdam on 14 November 1923. Isaäc was a cigar-maker. Addition of a visitor of the website
In addition, a Jokos file (number 32166) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.