Columbia subject headings:
Industrial arts--United States--Biography.
Industries--United States.
Inventors--United States--Biography.
Manufactures--United States--Biography.
Manufactures--United States.
Manufacturing industries--United States.
Harvard subject headings:
Capitalists and financiers--United States
Industrial arts--United States--Biography.
Industries--United States--History
Princeton subject headings:
Industrial arts--United States--Biography.
Industries--United States.
Inventors--United States--Biography.
Manufactures--United States--Biography.
Manufactures--United States.
Manufacturing industries--United States.