
Dr David Nelson Mahon
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| Dr David Nelson Mahon |
| Dr David Nelson Mahon | |
| B: | 1797 |
| Pittsburgh, Allegheny, Pennsylvania, USA | |
| D: | 29 Aug 1876 |
| Carlisle, Cumberland, Pennsylvania, USA | |
| Julia Maria Montgomery |
| Julia Maria Montgomery | |
| B: | 9 Nov 1821 |
| New Jersey, USA | |
| M: | 23 Apr 1851 |
| District of Columbia, USA | |



