Person ? H. -D. Boyle
- From 1912-01-01 to 1912-12-31, administrateur à Londres of SIMMER AND JACK PROPRIETARY MINES LTD
- From 1912-01-01 to 1912-12-31, administrateur à Londres of Robinson Deep Gold Mining Co, Ld
- From 1912-01-01 to 1912-12-31, Administrateur of LENA GOLDFIELDS LTD
- From 1917-01-01 to 1917-12-31, Administrateur of OCEANA CONSOLIDATED COMPANY, LIMITED