- Ancient Coins, 1956/19933
- Andrea Maxine Lucas Architectural Collection, 1980/200318
- Andrew C. L. Gatewood papers, 1860/19932
- Andrew C. Lyons, Architect, Drawings for Buildings in Fairmont, West Virginia, 1890/2013, bulk 1890/19101
- Andrew Jackson Davis Collection, 1840/20112
- Andrew Kohen papers, 1977/200614
- Anita Fellman Collection, 1987/20144
- Ann A. Hertzler Collection, 1863/2013, bulk 1974/200029
- Ann Buckles Papers, 1950/200879
- Ann Magnuson, Performance Artist, Papers, 1973/202415
- Ann Marie Stock Cuban Poster collection, 1967/20152
- Anna Banana collection, 1975/20036
- Anna P. Sokolina Architectural Collection, 1924/201910
- Anna Schein, Collector, Feedsack Textile Bag Collection, 1925/19651
- Anna Shue Atkins Papers, 1918/20131