- "General Lee's Visit to Leesburg and Harrison Hall"
19222
- "Out of the Attic" Collection, 1979-199318
- A Guide to the Loudoun County Architectural Surveys Supplement
20036
- Address by the Reverend John Dunn
18182
- African American Architectural Surveys In Loudoun County, VA
200417
- Agreement between Lemuel Norris and Loudoun County
18743
- Aldie Horticultural Society Records, 1923-201375
- Aldie Methodist Church Minutes
1962-19652
- Aldie Ruritan Records
1972-2001
1973-199953
- Alexander McIntyre/William Moore Land Indenture, 18404
- Alexandria, Loudoun & Hampshire Railroad Account Book, Guilford, VA
1860-1868
1866-18683
- American Association of University Women, Loudoun Branch Records
1973-199835
- American Legion of Honor, Loudoun Council No. 341 Records
1880-18973
- American Revolution Bicentennial Poster Collection, 1974-1977, n.d.9
- Andrew Monroe Cridler Papers, 1871-1913, n.d.14