Residents of Mountain — Sub-district C, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
|---|
| 11 | oke | albert | M | 23 | Wesleyan Methodist | English | Ontario | Farmers, general and nfs | 23 |
| 13 | oke | albert | M | 1 | Wesleyan Methodist | English | Ontario | No Occupation Listed | 23 |
| 12 | oke | ally | F | 24 | Wesleyan Methodist | English | Ontario | No Occupation Listed | 23 |
| 11 | oke | samuel | M | 25 | Christian Baptist | English | Ontario | Farmers, general and nfs | 218 |
| 1 | olivir | jannet | F | 65 | Presbyterian | Scottish | Scotland | No Occupation Listed | 106 |
| 18 | olsen | barbara | F | 15 | Anglican | English | Manitoba | No Occupation Listed | 171 |
| 17 | olsen | christina | F | 38 | Anglican | English | Manitoba | No Occupation Listed | 171 |
| 16 | olsen | ryor | M | 50 | Anglican | English | Manitoba | Farmers, general and nfs | 171 |
| 19 | olsen | sarah | F | 8 | Anglican | English | Manitoba | No Occupation Listed | 171 |
| 8 | omalley | robert | M | 27 | Anglican | Irish | Ireland | Farmers, general and nfs | 41 |
| 9 | omalley | sarah | F | 22 | Anglican | Scottish | Manitoba | No Occupation Listed | 41 |
| 17 | oueess | james | M | 18 | Presbyterian | Scottish | Ontario | No Occupation Listed | 24 |
| 7 | owens | maria | F | 28 | Anglican | English | Quebec | No Occupation Listed | 292 |
| 6 | owens | robert | M | 25 | Anglican | English | Quebec | Farmers, general and nfs | 292 |