| SUBJECT | CALENDAR DATE |
| Oak Grove, Historical Marker (photograph) | 2004 November |
| O'Connell, J. J., Dr. | 1998 June |
| O'Connell, J. J., Dr. | 2004 May |
| O'Connell, J. J., Father | 2001 May |
| Old Furnace Foundation | 1997 July |
| Oliver, Fred | 1997 January |
| Ormand Family Reunion | 1997 July |
| Ormand Furnace | 2005 Inside Back |
| Ormand Furnace (drawing) | 1997 July |
| Ormand Furnace (photograph) | 2005 January |
| Ormand, Benjamin | 1997 July |
| Ormand, Benjamin | 1997 September |
| orphanage, Greek Orthodox Church--same building used for Gaston Hall | 1998 October |
| Orthopaedic Hospital Watermelon Feed (photograph) | 2001 July |
| Orthopaedic Hospital, North Carolina (photograph) | 1996 July |
| Orthopedic Hospital, Historical Marker (photograph) | 2004 December |
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