Literature
- Clyde Fitch collection of plays
- Robert Frost editions and ephemera
- Cecilia Holland collection
- Margaret Fuller papers
- New London Development Corporation (NLDC) papers
- Luanne Rice collection
- Lorraine Wyman collection
History
- Robert C. Fregosi papers
- W.F.D Morrisson papers
- Civil War Collections
- Miscellaneous Civil War Correspondence