- William Carlos Williams papers (YCAL MSS 116)28
- David Gascoyne collection (GEN MSS 529)27
- Edwin J. Beinecke Collection of Robert Louis Stevenson (GEN MSS 664)27
- Thornton Wilder papers (YCAL MSS 108)27
- Theatre Guild archive (YCAL MSS 436)26
- Czesław Miłosz papers (GEN MSS 661)25
- Land of Zenj photograph collection (GEN MSS 619)25
- Robert Penn Warren papers (YCAL MSS 51)23
- Mabel Dodge Luhan papers (YCAL MSS 196)22
- Bryher papers (GEN MSS 97)20
- Edith Wharton collection (YCAL MSS 42)20
- Henry David Thoreau collection (YCAL MSS 203)20
- James Lees-Milne papers (GEN MSS 476)20
- Olga Rudge papers (YCAL MSS 54)18
- Witold Gombrowicz archive (GEN MSS 515)16
- Aleksander Wat papers (GEN MSS 705)14
- John Ruskin collection (GEN MSS 1168)14
- Joseph Conrad Collection (GEN MSS 1207)14
- Rochambeau Papers and Rochambeau Family Cartographic Archive (GEN MSS 146)14
- Eugène and Maria Jolas papers (GEN MSS 108)13