Names
- Case, E. C. (Ermine Cowles), b. 1871.1
- Cassino, Samuel Edison, 1856-1937.1
- Cassino, Samuel Edson, 1856-1937.1
- Chamberlin, Thomas C. (Thomas Chrowder), 1843-1928.1
- Chandler, Zachariah, 1813-1879.1
- Chapman, Howard Rufus, 1868-1942.1
- Chicago Academy of Sciences1
- Chicago Academy of Sciences.1
- Clark, Mary H., -1875.1
- Clark, Mary H., d. 1875.1
- Cocker, Benjamin Franklin, 1821-1883.1
- Cooley, Charles Horton, 1864-1929.1
- Creation Research Society.1
- Cumerian Club1
- Cummings, Joseph, 1817-1890.1
- Currier, A. O.1
- Curtis, Heber Doust, 1872-19421
- Curtis, Heber Doust, 1872-1942.1
- Dana, James Dwight, 1813-1895.1
- Darrow, Clarence, 1857-1938.1