- A. Glass Account Book, 1844/18621
- A. K. Fulton and A. S. Fulton Ledger, 1861/18651
- A.C.L. Gatewood Papers, 1801/19191
- Abner Johnson Leavenworth Papers, 1825/18611
- Absalom See Account Books, 1854/18691
- Account Book Including Recipes and Home Remedies, 1856/18691
- Account book (N.H.), 1856/18741
- Adam Empie Papers, 1811/2004, bulk 1811/18501
- Alexander Brown Papers (I), 1815/19101
- Alexander Haight family collection, 1764/19761
- Amelia County, Va. Merchant's Account Book, 1852/1903, bulk 1852/18561
- Amos Johnson Ledgers, 1808/1861, bulk 1808/18211
- Amos Koontz Papers I, 1809/1965, bulk 1936/19651
- Armistead-Cocke Papers, 1680/19171
- Arthur I. Boreman Papers, 1830/19491