- Charles Blair Tavenner Collection
1709-19802
- "General Lee's Visit to Leesburg and Harrison Hall"
19221
- "Out of the Attic" Collection,
1979-19931
- A Guide to the Loudoun County Architectural Surveys Supplement
20031
- Address by the Reverend John Dunn
18181
- African American Architectural Surveys In Loudoun County, VA
20041
- Agreement between Lemuel Norris and Loudoun County
18741
- Aldie Horticultural Society Records,
1923-20131
- Aldie Methodist Church Minutes
1962-19651
- Aldie Ruritan Records
1972-2001
1973-19991
- Alexander McIntyre/William Moore Land Indenture,
18401
- Alexandria, Loudoun & Hampshire Railroad Account Book, Guilford, VA
1860-1868
1866-18681
- American Association of University Women, Loudoun Branch Records
1973-19981
- American Legion of Honor, Loudoun Council No. 341 Records
1880-18971
- American Revolution Bicentennial Poster Collection ,
1974-1977, n.d.1