Names
- Cripple Creek and Colorado Springs Railroad Company.1
- Crown Card Company1
- Cumming, John, 1915-2010.1
- Cuyler, Abraham, 1742-1810.1
- Dalling, John.1
- Daughters of the American Revolution.1
- Davis, Alton T.1
- Davis, O. T. (Ory Thomas)1
- Day, Martha Louise1
- Denver and Rio Grande Railway Company.1
- Deromedi, Herb1
- Dewey, D. M. (Dellon Marcus), 1819-18891
- Diana (Steamer).1
- Dilworth family.1
- Donkin, Robert, 1727-1821.1
- Dow, Donald P., 1925-2009.1
- Drewe, Edward, d. 1793.1
- Dunwoody, James, 1745-18151
- Dunwoody, Jane, 1816-18951
- Edison, Thomas A. (Thomaas Alva), 1847-1931.1