Full record for O'Brien, John
| Last Name | O'Brien |
| First Name | John |
| Nativity | Ireland |
| Business | Wagon maker, Brock Street |
| Year Settled | 1849 |
| Post Office | Peterborough |
| Town | Peterborough |
| Township | Monaghan North |
| County | Peterborough |
| Atlas Date | 1871 |
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