- "Northern Virginia Region Present and Future Population Densities" map, 19691
- "Vienna Planning District: A Summary of the Plan Adopted by the Board of Supervisors" pamphlet, 1967/19701
- Abraham Anson papers, 1939/200548
- Agnes Wolf papers, 1966/20066
- Alan Bowne papers, 1964/1991, bulk 1980/19893
- Alexander Haight family collection, 1764/19763
- Alexander Haight family collection, 1764/19776
- American Political Items Collectors collection9
- American Political Items Collectors collection, 1895/19881
- American Public Transportation Association records, 1898/1999301
- American Public Transportation Association records, 1950/19801
- American Theatre Association records16
- Amy Federman performing arts collection, 1963/20122
- Arena Stage records, 1949/2010638
- Armistead L. Boothe collection, 1920/198316