Full record for O'Neil, Mary Ann
| Title | Miss |
| Last Name | O'Neil |
| First Name | Mary Ann |
| Nativity | Ireland |
| Business | Dressmaker, N. Brock Street |
| Year Settled | 1860 |
| Post Office | Peterborough |
| Town | Peterborough |
| Township | Monaghan North |
| County | Peterborough |
| Atlas Date | 1871 |
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