Collection
- The Anti-Imperialist League Collection, 1895-19284
- Ammon Hennacy papers, 1918-1966 (majority within 1936-1944)3
- Arnold Schönberg Letters from Notable Musicians, 1901-19513
- Culinary Ephemera: Beverages, circa 1880s-2004, and undated3
- Eleanor Leacock Papers, 1915-1987 (majority within 1940-1970)3
- Francis Steiner Papers, 1918-19203
- John L. Schock Papers, 1904-19623
- Ogden E. Edwards Family Papers, 1820-19383
- Orson Welles - Oja Kodar Papers, 1910-2000 (majority within 1965-1985)3
- Tiffany Bernard Williams Papers, 1893-19863
- William R. Day Collection, 1788-19423
- Algernon Charles Swinburne Collection, 1839-1981 (majority within 1860-1930)2
- Culinary Ephemera: War, 1916-19452
- E.F. Doree papers, 1917-19222
- Emma Goldman and Warren Starr Van Valkenburgh, 1910s to 1930s2
- Frederick and Lilian Holt Peace Expedition Papers, 1915-19172
- Henry Bool correspondence, 1895-19212
- Louis J. Berger Collection, 1882-1941 (majority within 1885-1895)2
- Lucius L. Hubbard Papers, 1918-19232
- Maria C. Lanzar-Carpio Papers, 19282