Names
- Cleveland, Cincinnati, Chicago, and St. Louis Railway Company.1
- Cleveland-Cliffs Iron Company.1
- Closterhouse, Leon T.1
- Cobbs & Mitchell.1
- Cochran, Friend Morris, 1897-1
- Cochrane, Donald F., 1881-1
- Columbus, Chicago and Indiana Central Railway Company.1
- Coors, D. Stanley, 1889-1
- Crawford and Manistee River Railway Company.1
- Crawford, Fred L., 1888-1957.1
- Cudlip, William B., 1904-1
- Cudlip, William B., 1904-1988.1
- Cummer Lumber Company.1
- Cummer Sons Cypress Company.1
- Cummer-Diggins Company.1
- Cutler & Savidge Lumber Company.1
- D.N. McLeod Lumber Company.1
- Davies, B. L.1
- Day, D. H. (David Henry), 1854-1
- Dean, Walter Clark, 1898-1