| O’Neal, Catherine Elizabeth (~1825-) | |
| O, Effie (1914-1988) | |
| Oehler, Fanne Woods (~1907-) | |
| Oliver, Virginia C. (1845-1913) | |
| Ollar, Theodore (~1877-) | |
| Owens, Andrew J. (~1831-) | |
| Owens, Edith Elizabeth Owens (1853-1940) | |
| Owens, Hugh M. (1857-) | |
| Owens, Stephen D. W. Owens (1855-) | |
| Ozell, Kate (~1888-) |