- Nelson Morpurgo collection (GEN MSS 493)13
- Eleanor Clark papers (YCAL MSS 315)12
- Trade catalogs collection. (Uai Trade Catalogs)6
- James Welch papers (YCAL MSS 248)5
- Louis-Marie de La Revellière-Lépeaux papers (GEN MSS 549)5
- Vita Sackville-West papers relating to Violet Trefusis (GEN MSS 428)5
- Harvey Shapiro papers (YCAL MSS 604)4
- Zbigniew Herbert papers (GEN MSS 527)4
- Maurice Sterne papers (YCAL MSS 39)3
- Mo Willems papers (GEN MSS 1003)3
- Saul Steinberg correspondence to Aldo Buzzi (YCAL MSS 1135)3
- Ugo Carrega artwork (GEN MSS 1450)3
- Gennadiĭ Panin papers (GEN MSS 294)2
- Richard Erdoes papers (WA MSS S-2609)2
- Ugo La Pietra papers (GEN MSS 1308)2
- Alfredo de Palchi and Sona Raiziss papers (GEN MSS 947)1
- Gianfranco Sanguinetti papers (GEN MSS 1181)1
- Gianni Bertini papers (GEN MSS 970)1
- Lamberto Pignotti papers (GEN MSS 1493)1
- Sarenco papers (GEN MSS 971)1