Columbia subject headings:
Harvard subject headings:
Allen, Horace Newton, 1858-1932.
Korea--History--1864-1910.
Korea--Relations--United States.
United States--Relations--Korea.
Princeton subject headings:
Allen, Horace Newton, 1858-1932.
Korea--History--1864-1910.
Korea--Relations--United States.
United States--Relations--Korea.