- Adele Blow Chatfield-Taylor family papers, 1899/197718
- Administration records collection, 1776/19763
- Administrative Management Society records, 1941/1987, bulk 1941/19871
- Advisory Committee Research Collection, 1772/20179
- African American Family Photo Album, 1940/19501
- 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 J. Wasserman Papers, 1925/20033
- Albert L. Sturm Papers, 1904/198819
- Albert Moore Reese, Zoology Professor, Miscellaneous Items, 1900/19704
- Albert R. Gallatin papers, 1795/18281
- Alberta Pfeiffer Architectural Collection, 1929/19767