Person ? J. A. Cohen
- From 1917-01-01 to 1923-12-31, Administrateur of FRANK SMITH DIAMOND ESTATES AND EXPLORATION COMPANY, LIMITED
- From 1917-01-01 to 1933-12-31, Administrateur of Durban Roodepoort Deep, Ld
- From 1940-01-01 to 1953-12-31, Administrateur of Durban Roodepoort Deep, Ld