Collection
- Arthur T. Sutcliffe Papers, 1838-19621
- Austin Strong papers, 1890-19611
- Barrell family papers, 1751-1929, bulk 1791-18891
- Bennett Cerf papers, 1898-19771
- Bernhard Joseph Stern papers, 1859-19591
- Boris Ivanovich Bok Collection on the Siege of Port Arthur, 1904-19051
- Boris N. and E.N. Levenets Papers, 1916-19601
- Burr Robbins Circus collection, 1864-19081
- C. H. Detwiller Columbia 1885 collection, 1874-1940, bulk 1881-18851
- C. J.Bulliet papers, 1899-19521
- Carl Remington papers, 1899-19051
- Carter Goodrich papers, 1918-19711
- Catherine S. Crary papers, 1724-18261
- Charity Clarke Moore and Clement Clarke Moore papers, 1767-18631
- Charlemagne Tower papers, 1830-18891
- Charles Augustus Stoddard papers, circa 1750 -- 19161
- Charles P. Sifton papers, 1968-20051
- Charles Richard Crane Papers, 1869-19671
- Charles S. Ascher papers, 1926-19791
- Charles T. Cotton papers, 1850-18771