| Oates, Will, Mrs. | 78 |
| Odell, John, Mr., of Concord | 108 |
| Officials of the Gaston Co. Historical Association | 6 |
| oil filtration, WIX Accessories Corp., Gastonia, N.C. | 134 (advt.) |
| oil products | 162 (advt.) |
| Old Cherryville Mill | 100 |
| Old Hutchison Place | 103 |
| Old Post Road | 99 |
| Oliver, Fred | 117 |
| Orange Crush Double Cola Bottling Co. | 162 (advt.) |
| Ormand iron ore mines | 107, 108 |
| Ormand, Bert | 89 |
| Ormand, Fred, Commissioner, Crowders Mtn. Township | 82 (photo) |
| Ormand, Mary | 107 |
| Orthopedic Hospital | 131 |
| Osage Mill | 108 |
| Owens, S. L. | 60 |
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