Columbia subject headings:
Harvard subject headings:
Agricultural machinery industry--United States--History
Deere & Company--History.
Deere, John, 1804-1886.
Industrialists--United States--Biography
Princeton subject headings:
Agricultural machinery industry--United States--History.
Deere & Company--History.
Deere, John, 1804-1886.
Industrialists--United States--Biography.