- "We Were Not Shadows" by Colonel E.P.J. Ryan, O.B.E typed manuscript, 1955/19651
- Abraham Anson papers, 1939/200528
- Alexander Haight family collection, 1764/19764
- American Political Items Collectors collection17
- American Public Transportation Association records, 1898/1999366
- American Theatre Association records11
- Amy Federman performing arts collection, 1963/20122
- Arena Stage records, 1949/2010237
- Armistead L. Boothe collection, 1920/19836
- Arnold Goldman Living Newspaper collection, 1931/19734
- Arnold Sundgaard papers, 1925/1988112
- Arthur E. Scott photograph collection57
- Arthur Franklin Raper papers, 1959/197517
- Arthur Peterson papers1
- Barbara Lustbader New York City playbills collection, 1957/201212