Residents of Clarendon N & S — Sub-district F, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 19 | obrien | bridgit | F | 22 | Roman Catholic | Irish | Quebec | No Occupation Listed | 118 |
| 21 | obrien | danl | M | 20 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 118 |
| 17 | obrien | john | M | 60 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 118 |
| 22 | obrien | margaret | F | 17 | Roman Catholic | Irish | Quebec | No Occupation Listed | 118 |
| 18 | obrien | mary | F | 60 | Roman Catholic | Irish | Quebec | No Occupation Listed | 118 |
| 20 | obrien | mary | F | 21 | Roman Catholic | Irish | Quebec | No Occupation Listed | 118 |
| 20 | oshom | charles | M | 17 | | Irish | Quebec | No Occupation Listed | 35 |
| 17 | oshom | derich | M | 27 | | Irish | Quebec | Farmers, general and nfs | 35 |
| 22 | oshom | james | M | 13 | | Irish | Quebec | No Occupation Listed | 35 |
| 16 | oshom | jane | F | 41 | | Irish | Quebec | No Occupation Listed | 35 |
| 15 | oshom | john | M | 30 | | Irish | Quebec | Farmers, general and nfs | 35 |
| 18 | oshom | mary | F | 24 | | Irish | Quebec | No Occupation Listed | 35 |
| 21 | oshom | sarah | F | 15 | | Irish | Quebec | No Occupation Listed | 35 |
| 19 | oshom | william | M | 22 | | Irish | Quebec | No Occupation Listed | 35 |