Residents of Tay — Sub-district J, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 9 | obyrne | bridget | F | 37 | Roman Catholic | Irish | Ireland | No Occupation Listed | 504 |
| 8 | obyrne | james | M | 41 | Roman Catholic | Irish | Ireland | Boot and shoemakers and repairers | 504 |
| 10 | obyrne | james | M | 2 | Roman Catholic | Irish | Ireland | No Occupation Listed | 504 |
| 11 | obyrne | peter | F | 0 | Roman Catholic | Irish | Ireland | No Occupation Listed | 504 |
| 23 | offeald | john | M | 33 | Roman Catholic | Prussian | Prussia | Labourers nfs | 526 |
| 19 | ohara | annie | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 216 |
| 18 | ohara | ernest | M | 3 | Roman Catholic | Irish | Ontario | No Occupation Listed | 216 |
| 16 | ohara | john | M | 28 | Roman Catholic | Irish | Ontario | Factory labourers (non-specified manufacturing) | 216 |
| 17 | ohara | rosalie | F | 22 | Roman Catholic | French | United States | No Occupation Listed | 216 |
| 2 | oneil | fanny | F | 30 | Methodist | Irish | Ontario | No Occupation Listed | 150 |
| 3 | oneil | ida | F | 3 | Methodist | Irish | Ontario | No Occupation Listed | 150 |
| 1 | oneil | john | M | 40 | Methodist | Irish | Ontario | Foremen and supervisors, railways | 150 |
| 4 | oneil | stella | F | 1 | Methodist | Irish | Ontario | No Occupation Listed | 150 |
| 3 | otter | susan | F | 15 | Roman Catholic | Aboriginal peoples, n.s | Ontario | No Occupation Listed | 245 |
| 4 | otter | theopolis | M | 7 | Roman Catholic | Aboriginal peoples, n.s | Ontario | No Occupation Listed | 245 |