Residents of South — Sub-district A, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 17 | obrian | edward | M | 43 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 267 |
| 13 | obrien | michael | M | 28 | None | Irish | Ontario | Farmers, general and nfs | 247 |
| 20 | oliver | elizabeth | F | 47 | Anglican | English | England | No Occupation Listed | 243 |
| 19 | oliver | frank | M | 29 | Roman Catholic | French | France | Labourers nfs | 281 |
| 14 | oliver | john | M | 24 | Anglican | English | Ontario | Farmers, general and nfs | 265 |
| 19 | oliver | thomas | M | 59 | Anglican | English | England | Farmers, general and nfs | 243 |
| 10 | olson | john | M | 32 | Lutheran | Swedish | Sweden | Farmers, general and nfs | 287 |
| 13 | orr | james | M | 55 | Anglican | English | England | Miners | 313 |
| 19 | orwig | george | M | 40 | Wesleyan Methodist | English | United States | No Occupation Listed | 115 |
| 15 | owens | john | M | 33 | Reformed Presbyterian | Irish | Ontario | Farmers, general and nfs | 248 |