Collection
- Judith Crist papers, 1930s-20121
- Kenneth A. Lohf papers, 1793-19921
- Kira Vasil'evna Hickox Papers, 1921-19741
- Konstantin Feodos'evich Shteppa Papers, 1945-19591
- Ksenia Nikolaevna Rossolimo Papers, 1845-19521
- L. Carrington Goodrich papers, 1890-19911
- Leonard Altman papers, 1930-19951
- Leonid Leonidovich Sabaneev Papers, 1917-19501
- Leonid Vladimirovich Andrusov Printed Materials, 1950-19591
- Leslie H. Dingyan Chen's collection of Historiographic Materials for a Biography of Chen Chiung-Ming, 19881
- Lewis Corey papers, 1910-19531
- Li Huang papers, 1928-19811
- Lionel Trilling papers, 1899-19871
- Liubov Artemovna Drazhevska Papers, 1947-19791
- Lodygin Family Papers, 1792-19501
- Lollii Ivanovich L'vov Papers, 1934-19421
- Louis-Alexis Gerby Memoirs, 1943-19571
- Lovis Corinth papers, 1917-19821
- M. Moran Weston Papers, 1824-19941
- Manfred Kridl Papers, 1925-19741