Collection
- Bing Crosby collection, 1943-1971 (majority within 1943-1954)1
- Binney family papers, 1809-18941
- Bleecker Houston papers, 1941-1990 (majority within 1941-1958)1
- Bradstreet family papers, 1776-1881 (majority within 1809-1866)1
- Brasee-Scofield family papers, 1819-1950 (majority within 1819-1874)1
- Bremen, Germany photograph album, 1935-19361
- Brownell family papers, 1823-1969 (majority within 1850-1940)1
- Busbey papers, 1838-1928 (majority within 1848-1903)1
- Buttolph family collection, 1872-1924 (majority within 1872-1890)1
- California, Colorado, and Long Island vacation photograph album, 1904-19061
- Calvin Mixter papers, 1897-19031
- Calvin Pease papers, 1839-18631
- Carl F. Eichenlaub papers, 1944-19551
- Caspar F. Goodrich papers, 1869-19251
- Charles Cogswell papers, 1869-1921 (majority within 1869-1899)1
- Charles F. Penley captured letters, 1864, 19151
- Charles Snyder papers, 1857-18661
- Charles and Richard Alden scrapbooks, 1885-18931
- Charlotte Elizabeth Dresser papers, 1907-19281
- Children at play photograph album, 1916-19281