Names
- Congress of Industrial Organizations (U.S.)1
- Cooley, Charles Horton, 1864-1929.1
- Cooley, Lyman Edgar, 1850-1917.1
- Cooley, Mortimer E. (Mortimer Elwyn), 1855-1944.1
- Cooley, Thomas McIntyre, 1824-1898.1
- Cornell University1
- Crawford and Manistee River Railway Company.1
- Cudney, Charles H., 1828-1904.1
- Cummer Lumber Company.1
- Cummer Sons Cypress Company.1
- Cummer-Diggins Company.1
- Curtis, William Eleroy, 1850-1911.1
- Cutcheon, Byron M., 1836-1908.1
- Cutler & Savidge Lumber Company.1
- Cyrus G. Luce1
- D'Ooge, Martin Luther, 1839-1915.1
- D.A. Reynolds1
- D.N. McLeod Lumber Company.1
- David Jewell1
- Dawson, William Mercer Owens, 1853-1916.1