- Agnes Smith (1906-1994), Author, Correspondence, Manuscripts, and Publications, 1920/19701
- Agricultural Extension Service Records, 1914/19801
- Al Gross Papers, 1909/20002
- Alan Clarke Railroad Research Papers, 1861/201227
- Albert Blakeslee White (1856-1941) Papers, 1888/19293
- Albert C. Swindler Papers, 1862/1929, bulk 1862/18642
- Albert Frederick Wilson papers, 1840/19346
- Albert L. Sturm Papers, 1904/19885
- Albert M. Reese (1872-1965) Papers, 1873/19541
- Albert M. Reese (1872-1965) Papers, 1907/19541
- Albert Moore Reese, Zoology Professor, Miscellaneous Items, 1900/197011
- Albert R. Gallatin papers, 1795/18281
- Alderman family papers, 1779/19615
- Aldine Marie Scott Scrapbook, 1923/19242
- Alexander Farish Robertson Papers, 1867/193120