- Abraham Anson papers, 1939/200530
- Agnes Wolf papers, 1966/20069
- Alan Bowne papers, 1964/1991, bulk 1980/19899
- American Political Items Collectors collection1
- American Political Items Collectors collection, 1895/19881
- American Public Transportation Association records, 1898/199963
- American Theatre Association records627
- American Theatre Association records, 1972/19861
- Amy Federman performing arts collection, 1963/20124
- Arena Stage records, 1949/20101,076
- Arnold Sundgaard papers, 1925/198820
- Art Attack records, 1979/200914
- Arthur Arundel papers, 1964/19908
- Arthur Herman papers, 1950/19991
- Arthur Peterson papers1