Residents of Pilkington — Sub-district G, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 13 | obrien | alice | F | 25 | Roman Catholic | Irish | Ontario | Teachers (unspecified) | 7 |
| 10 | obrien | ellen | F | 38 | Roman Catholic | Irish | Ireland | No Occupation Listed | 7 |
| 11 | obrien | margret | F | 35 | Roman Catholic | Irish | Ireland | No Occupation Listed | 7 |
| 9 | obrien | mary | F | 69 | Roman Catholic | Irish | Ireland | No Occupation Listed | 7 |
| 14 | obrien | mary | F | 12 | Roman Catholic | Irish | United States | No Occupation Listed | 7 |
| 8 | obrien | thomas | M | 70 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 7 |
| 12 | obrien | thomas | M | 21 | Roman Catholic | Irish | Ontario | No Occupation Listed | 7 |
| 3 | oconnor | cornelius | M | 48 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 10 |
| 8 | oconnor | daniel | M | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 1 | oconnor | elizabeth | F | 33 | Roman Catholic | Irish | Ontario | No Occupation Listed | 5 |
| 7 | oconnor | francis | M | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 6 | oconnor | james | M | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 5 | oconnor | john | M | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 4 | oconnor | mary | F | 40 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 9 | oconnor | mary | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 25 | oconnor | thomas | M | 31 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 5 |
| 10 | oconnor | thomas | M | 0 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 2 | olenske | elizabeth | F | 25 | Roman Catholic | German | Germany | No Occupation Listed | 150 |
| 1 | olenske | john | M | 30 | Roman Catholic | German | Germany | Farmers, general and nfs | 150 |
| 3 | olenske | john | M | 4 | Roman Catholic | German | Ontario | No Occupation Listed | 150 |
| 5 | olenske | josephine | F | 2 | Roman Catholic | German | Ontario | No Occupation Listed | 150 |
| 4 | olenske | martin | M | 3 | Roman Catholic | German | Ontario | No Occupation Listed | 150 |
| 6 | olenske | martin | M | 70 | Roman Catholic | German | Germany | No Occupation Listed | 150 |
| 7 | olenske | mary | F | 68 | Roman Catholic | German | Germany | No Occupation Listed | 150 |