Columbia subject headings:
Chicago tribune.
McCormick, Robert R. (Robert Rutherford), 1880-1955.
Harvard subject headings:
Chicago tribune.
McCormick, Robert R. (Robert Rutherford), 1880-1955.
Newspaper publishing--United States--Biography.
Princeton subject headings:
Chicago tribune.
McCormick, Robert R. (Robert Rutherford), 1880-1955.