Columbia subject headings:
Industrialists--United States--Biography.
Petroleum industry and trade--United States--History.
Rockefeller, John D. (John Davison), 1839-1937.
Standard Oil Company--History.
Harvard subject headings:
Industrialists--United States--Biography
Petroleum industry and trade--United States--History
Rockefeller, John D. (John Davison), 1839-1937.
Standard Oil Company--History.
Princeton subject headings:
Industrialists--United States--Biography.
Petroleum industry and trade--United States--History.
Rockefeller, John D. (John Davison), 1839-1937.
Standard Oil Company--History.