Archibald Cary Coolidge was an American educator and diplomat. He was a professor of history at Harvard College from 1908 and the first director of the Harvard University Library from 1910 until his death. Coolidge was also a scholar in international affairs, a planner of the Widener Library, a member of the United States Foreign Service, and editor-in-chief of the policy journal Foreign Affairs.
- Occupation
- historian of Modern Age, historian, diplomat, university teacher
- Position held
- Harvard University Librarian, library director
- Citizenship
- United States
- Born
- March 6, 1866, 1866
