Person ? général sir John P. du Cane
- From 1940-01-01 to 1940-12-31, Vice-Président of DE BEERS CONSOLIDATED MINES
- From 1940-01-01 to 1940-12-31, Membre du comité de Londres of NEW JAGERSFONTEIN MINING AND EXPLORATION COMPANY
- From 1940-01-01 to 1945-12-31, Administrateur of PREMIER (TRANSVAAL) DIAMOND MINING COMPANY LTd
- From 1945-01-01 to 1945-12-31, Membre du comité de Londres of NEW JAGERSFONTEIN MINING AND EXPLORATION COMPANY