Columbia subject headings:
Businessmen--South Africa--Biography.
Diamond industry and trade--South Africa--History.
Gold industry--South Africa--History.
Robinson, Joseph Benjamin, Sir, 1840-1929.
Harvard subject headings:
Capitalists and financiers--South Africa--Biography.
Capitalists and financiers--South Africa--History.
Diamond mines and mining--South Africa--History.
Gold mines and mining--South Africa--History.
Robinson, J. B., South African mine owner.
Princeton subject headings:
Businessmen--South Africa--Biography.
Diamond industry and trade--South Africa--History.
Gold industry--South Africa--History.
Robinson, Joseph Benjamin, Sir, 1840-1929.