Full record for O'Sullivan, John
| Last Name | O'Sullivan |
| First Name | John |
| Nativity | Ireland |
| Business | Township Clerk; Farmer |
| Year Settled | 1841 |
| Post Office | Seaforth |
| Township | McKillop |
| County | Huron |
| Atlas Date | 1879 |
| Concession and Lot | Lot size |
| II, 13 | 100 |
| II, 13: |
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