Columbia subject headings:
Clayton, Will, 1880-1966.
Dunn, James Clement, 1890-
Grew, Joseph C. (Joseph Clark), 1880-1965.
Holmes, Julius Cecil, 1889-
MacLeish, Archibald, 1892-1982.
Rockefeller, Nelson A. (Nelson Aldrich), 1908-1979.
United States. Department of State.
Harvard subject headings:
Clayton, Will, 1880-1966.
Dunn, James Clement, 1890-
Grew, Joseph C. (Joseph Clark), 1880-1965
Holmes, Julius Cecil, 1889-
MacLeish, Archibald, 1892-1982
Rockefeller, Nelson A. (Nelson Aldrich), 1908-1979
Princeton subject headings: