The collection consists chiefly of professional correspondence, manuscripts, course materials and research materials documenting Rozwenc's career as a historian, editor, and teacher of American Studies at Amherst College, 1946-1974.

This collection is organized into four series:

• 1. Professional Correspondence, ca. 1960-1972
• 2. Course Material, ca. 1965-1974
• 3. Manuscripts of Books Written or Edited by Rozwenc, 1941-1973 (bulk 1952-1972)
• 4. Miscellaneous, ca. 1961-1973