- AFL-CIO Community Service Activities Records (2)
- AIDS Poster Collection (256)
- Addict in the Street (12)
- Adunata dei refrattari FBI files collection (1)
- African American Literature (367)
- Agnes Williams Collection (163)
- Agricultural Extension Service Collection (15)
- Alan Rich Papers (29)
- Albert Hoffmeyer Memorial Slide Collection (1)
- Albert J. Kennedy Papers (90)
- Alex McKenzie Collection of Computer Networking Development Records (78)
- Alice Taylor Davis Papers (3)
- Allan Spear Papers (17)
- Alliance of Cambridge Settlement Houses Records (1)
- Alvin Schorr Papers (32)
- American Hellenic Educational Progressive Association (AHEPA) Records (31)
- American Public Welfare Association Records (32)
- American Social Health Association Records (2591)
- American Terra Cotta Collection (5900)
- Ames Library of South Asia General Collection (1186)
