Full record for McMahon, David
| Last Name | McMahon |
| First Name | David |
| Nativity | Ontario Co., Canada |
| Business | Farmer |
| Year Settled | 1850 |
| Post Office | Harrowsmith |
| Township | Portland |
| County | Frontenac |
| Atlas Date | 1878 |
| Concession and Lot | Lot size |
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