- Adams T. Rice papers, 1922/19602
- Addison H. Smith papers, 1917/1970, bulk 1917/19222
- Adele Blow Chatfield-Taylor family papers, 1899/197718
- Administration records collection, 1776/19761
- Administrative Management Society records, 1941/1987, bulk 1941/19872
- African American Family Photographs, 1880/19604
- African American Family photograph album, 1910/19601
- African American Hugh Carr family, River View Farm, and the Papers of the Ivy Creek Foundation, 1916/19881
- Albert E. Haak Scrapbook, 1947/19771
- Albert Frederick Wilson papers, 1840/19341
- Albert I. Godden Papers, 1949/19721
- Albert J. Wasserman Papers, 1925/20034
- Albert L. Sturm Papers, 1904/198844
- Albert Moore Reese, Zoology Professor, Miscellaneous Items, 1900/19703
- Albert R. Gallatin papers, 1795/18281