- "An Account and History of the Tazewell Family" [autobiography], 18231
- A.B. Sharp, Compiler, Barr Family Genealogy, 1960/19691
- Abell/Abel/Able Branches and Twigs, 1991-19951
- Adams Papers, 1782/18901
- Alexander Brown Papers (II), 1748/19001
- Alexander Lockhart Nelson papers, 1848/19021
- Alfred Leyburn Papers, 1823/1899, bulk 1830/18393
- Allen-Warren Family Genealogical Notes, 19901
- Alpheus B. Stickney, Compiler, Pierpont Family Genealogy, 1953/19571
- Amos Koontz Papers I, 1809/1965, bulk 1936/19651
- Andrew Jackson Dadisman (1881-1965), Agricultural Economics Professor, Papers, 1914/19631
- Andrew Nelson Campbell, Civil War Veteran and Monroe County Politician, Papers, 1856/19321
- Anita Cutright Burnett, Collector, Papers, 1790/19351
- Aretas Brooks Fleming (1839-1923) Papers, 1784/19241
- Aretas Brooks Fleming Papers, 1784/19241