Notes, manuscripts, articles, notebooks, newspaper clippings, and correspondence relating to the work of Anson Daniel Morse, professor of history at Amherst College, 1876-1907. The bulk of the collection covers Morse's scholarly work on American party politics and American history. The collection also contains correspondence between Morse and students as well as other faculty.

This collection is organized into five series:

• 1. Manuscript material on Party and Party Government
• 2. Hamilton, Jefferson, and Adams
• 3. General American History
• 4. General European History
• 5. Miscellaneous