Collection
- Kenneth A. Lohf papers, 1793-19921
- L. Carrington Goodrich papers, 1890-19911
- Lenore Marshall papers, 1887-19801
- Lewis Corey papers, 1910-19531
- Louis B. Boudin papers, 1900-19501
- Louis G. Cowan papers, 1885, 1952-1976, bulk 1952-19761
- Manfred Kridl Papers, 1925-19741
- Mario G. Salvadori Lectures, 1954-19861
- Melville Cane papers, 1901-19791
- Mikhail Aleksandrovich Taube Papers, 1890-19601
- Mikhail Mikhailovich Novikov Papers, 1925-19611
- Mira Edgerly Korzybska papers, 1850-19601
- Moncure Daniel Conway papers, 1847-19071
- Morton H. Fried papers, 1945-1996, bulk 1961-19861
- Nicholas Murray Butler papers, 1891-19471
- Nicholas Murray Butler speeches, 1882-19471
- Nikolai Timofeevich Beliaev Papers, 1925-19551
- Oscar James Campbell papers, 1914-19641
- Otto Rank papers, 1903-1988, bulk 1903-19401
- Park Benjamin papers, 1645-19251