Collection
- Blanchard Family Papers, circa 1835-circa 20001
- Blanche Van Leuven Browne papers, 1898-1981 (majority within 1907-1930)1
- Boyd family papers, 1761-19451
- Brecken Family papers, 1894-1937, 1965 (majority within 1913-1918)1
- Buck Family papers, 1851-19281
- Calvin Thomas Papers, 1838-1940 (majority within 1872-1919)1
- Campbell family papers, 1860-1865, 1879-19491
- Carl M. Weideman Papers, 1921-1972 (majority within 1932-1934)1
- Carl Rominger family papers, 1840-19451
- Carlisle Family papers, 1860-19721
- Carlton F. Wells papers, 1910-19941
- Cavanagh Family papers, 1857-20061
- Charles A. Simpson papers, 1910-19321
- Charles A. Sink Papers, 1900-19961
- Charles B. Haydon Papers, 1852-1864 (majority within 1861-1864)1
- Charles David Williams papers, 1878-19231
- Charles Horton Cooley papers, 1872-19301
- Charles L. Stevenson papers, 1841-1846, 1925-19791
- Chase S. Osborn Papers, circa 1870-1949 (majority within 1889-1949)1
- Chester M. Howell papers, circa 1910-1990 (majority within 1950-1980)1