Collection
- Ivy L. Lee and Cornelia Bartlett Bigelow Lee correspondence, 1900-19281
- Jacques Barzun papers, 1900-19991
- John Leonard papers, 1939-2015, bulk 1950s-20081
- Joseph Marks papers about Anne Frank, 1950-19991
- L. S. Alexander Gumby collection of Negroiana, 1800-19811
- La Guardia Memorial House records, 1899-19931
- Leonard Altman papers, 1930-19951
- Liubov Artemovna Drazhevska Papers, 1947-19791
- M. Moran Weston Papers, 1824-19941
- Map: "The Fifth Column Menaces America on a Thousand Fronts", 19411
- Mary Lasker papers, 1940-19931
- New York City Opera records, 1924-2019, bulk 1965-19911
- Otto Rank papers, 1903-1988, bulk 1903-19401
- Paul Oskar Kristeller papers, 1910-19891
- Peter Schickele Papers, 1874-2013, bulk 1955-20131
- Roberts Brothers papers, 1838-1932, bulk 1882-18981
- Rose Associates Inc. records, 1935-2004, bulk 1935-19831
- Russkii Natsional'nyi Komitet Records, 1917-19601
- Samson Raphaelson papers, 1916-19821
- Seymour Melman papers, 1958-19971