- 17th and 18th century British periodicals, 1600/18001
- A. Willis Robertson Papers, 1921/1988, bulk 1946/19661
- Abraham Hewes Journals, 1795/18053
- Adams Papers, 1782/18902
- Adolphus Weir Account Book, 1790/18062
- Alexander Balmaine Memorandum Book, 1775/18202
- Alexander Brown Papers (II), 1748/19001
- Andrew Lindamood papers, 1768/18172
- Andrew Reid Account Book, 1787/18372
- Archibald Stuart Ledgers, 1757/18523
- Archibald Stuart Papers, 1790/18162
- Archibald Woods Papers, 1777/1846, bulk 1783/184616
- Arithmetic Notebook, I, 1780/18201
- Armistead Papers, 1736/18971
- Armistead-Cocke Papers, 1680/19177