- Abraham Anson papers, 1939/200513
- Adams T. Rice papers, 1922/19602
- Alexander Haight family collection, 1764/19764
- American Political Items Collectors collection8
- American Public Transportation Association records, 1898/1999337
- American Theatre Association records6
- Animation still photographs from the "Tom and Jerry" short "Johann Mouse", 19531
- Arena Stage records, 1949/201073
- Armistead L. Boothe collection, 1920/19834
- Arnold Goldman Living Newspaper collection, 1931/19734
- Arnold Sundgaard papers, 1925/198892
- Arthur E. Scott photograph collection52
- Arthur Peterson papers3
- Bernard G. Hoffman ethnohistory papers, 1953/19641
- Bernard Rosenblatt Regional Theatre Council for Northern California and Nevada papers, 1938/19798