For a biographical note see: H.E. Dominicus, Mauthausen. Een gedenkboek (2e herziene en uitgebreide druk; Amsterdam 1999) 143.
Israel Spanjar presumably lived in Amsterdam in the 1940's. He worked there as a baker.
Addition of a visitor of the website
This person is commemorated on a memorial in Ruurlo. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.