- Abraham Anson papers, 1939/200524
- Agnes Wolf papers, 1966/200611
- 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, 1898/199960
- American Theatre Association records142
- American Theatre Association records, 1972/19861
- Amy Federman performing arts collection, 1963/20122
- Arena Stage records, 1949/2010998
- Arnold Sundgaard papers, 1925/198818
- Art Attack records, 1979/200916
- Arthur Arundel papers, 1964/19908
- Arthur Herman papers, 1950/19991
- Arthur Peterson papers1