Person ? R. Philipson-Stow
- From 1917-01-01 to 1917-12-31, agent administratif of DE BEERS CONSOLIDATED MINES
- From 1923-01-01 to 1933-12-31, Administrateur of DE BEERS CONSOLIDATED MINES
- From 1927-01-01 to 1933-12-31, Administrateur of PREMIER (TRANSVAAL) DIAMOND MINING COMPANY LTd
- From 1940-01-01 to 1948-12-31, Administrateur of PREMIER (TRANSVAAL) DIAMOND MINING COMPANY LTd
- From 1940-01-01 to 1948-12-31, Administrateur of DE BEERS CONSOLIDATED MINES