Isidor Coopman was deported to Sobibor in June 1943 from Vught via Westerbork on the so-called children's transport. He was 14 when he died.
J. de Moei, Joodse kinderen in het kamp Vught (Vught 1999) 26
In August 1941 Isidor Coopman was enrolled in the first year of the programme for electricians of the 3rd vocational school in East Amsterdam.
Data on Jewish students at Amsterdam vocational schools in 1941Lists of Jewish students at vocational schools in Amsterdam appear in: A. Caransa, Van School Verwijderd. Jood. Dokumenten betreffende de verwijdering van joodse leerlingen van Amsterdamse ambachtsscholen in 1941 (Tuindorp z.d.).