Columbia subject headings:
Diplomats--United States--Biography.
Europe--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--Europe.
Harvard subject headings:
Diplomats--United States--Biography
Europe--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--Europe.
Princeton subject headings:
Diplomats--United States--Biography.
Europe--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--Europe.