Person ? R. Williams
- From 1912-01-01 to 1923-12-31, Administrateur of TANGANYIKA CONCESSIONS, LIMITED
- From 1933-01-01 to 1933-12-31, Administrateur of TANGANYIKA CONCESSIONS, LIMITED
- From 1933-01-01 to 1933-12-31, Administrateur of UNION MINIERE DU HAUT-KATANGA