Residents of Parkhill, T-V — Sub-district H, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 2 | obrien | ellen | F | 34 | Roman Catholic | Irish | Ontario | No Occupation Listed | 15 |
| 1 | obrien | thomas | M | 54 | Roman Catholic | Irish | Ireland | solicitor | 15 |
| 3 | obrien | thomas | M | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 15 |
| 3 | oconnor | cornelius | M | 50 | Roman Catholic | Irish | Ireland | No Occupation Listed | 96 |
| 4 | odonnell | charles | M | 45 | Roman Catholic | Scottish | England | Labourers nfs | 160 |
| 6 | odonnell | euphemia | F | 20 | Roman Catholic | Scottish | Ontario | Servants nfs | 160 |
| 7 | odonnell | hugh | M | 18 | Roman Catholic | Scottish | Ontario | Printers nfs | 160 |
| 5 | odonnell | sarah | F | 47 | Roman Catholic | Scottish | England | No Occupation Listed | 160 |
| 7 | owens | elizabeth | F | 50 | Anglican | Irish | Ontario | No Occupation Listed | 305 |
| 8 | owens | john | M | 22 | Anglican | Welsh | Ontario | No Occupation Listed | 305 |