| 1951 | Feb 1 | Is elected to the National Institute of Arts and Letters as one
whose works are "likely to achieve a permanent place in
American culture." |
| 1951-55 | | Is president of the American Composers Alliance. |
| 1953 | | Is appointed adjunct professor of music at Columbia Univer-
sity. Is elected vice-president of the Contemporary Music Society. |
| 1955 | | Is co-author, with Sidney Cowell, of Charles Ives and His Music
(New York: Oxford University Press). |
| 1956 | Aug | Sails for Dublin with Mrs. Cowell, to begin trip around the
world under a Rockefeller Foundation grant to survey music in
Asia (primarily Iran, India, and Japan). |
| 1961 | | Is appointed by President Kennedy to represent the U.S.A. at
the International Music Conference at Teheran and at the East-
West Music Encounter in Tokyo. |
| 1962 | Feb 13 | Is elected vice-president of the National Institute of Arts and
Letters. |
| | May 27 | Is awarded the Henry Hadley Medal by the National Associa-
tion of American Composers and Conductors. |
| 1965 | Dec 10 | Dies after a prolonged illness. |
