Jacobus de Rooij was a son of Willem de Rooij and Annetta Wolf.
Stadsarchief Amsterdam, archiefkaart Willem de Rooij
For some time Jacobus de Rooij and his family lived in the Dutch East-Indies, presumably not far from Tjilatjap. Around 1927 the family returned to the Netherlands and lived in Amste…
Jacobus de Rooij studied medicine in Amsterdam, where he sat for his medical finals on 28 June 1907. He worked for the Rijksverzekeringsbank in Amsterdam. De Rooij lived at 37 Ruyschdaelkade in Amsterdam. He obtained his PhD on 7 May 1940 in Amsterdam on the basis of a doctoral thesis on 'Operations…