Residents of Fullarton — Sub-district F, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 10 | ogilvie | george | M | 22 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 39 |
| 11 | ogilvie | isebella | F | 18 | Presbyterian | Scottish | — | Farmers, general and nfs | 39 |
| 3 | ogilvie | robert | M | 20 | Presbyterian | Scottish | Ontario | river drivers | 43 |
| 6 | oliver | agnes | F | 51 | Presbyterian | Scottish | Scotland | Farmers, general and nfs | 125 |
| 11 | oliver | charles | M | 15 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 125 |
| 5 | oliver | david | M | 53 | Presbyterian | Scottish | Scotland | Farmers, general and nfs | 125 |
| 7 | oliver | david | M | 27 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 125 |
| 13 | oliver | isebella | F | 7 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 125 |
| 8 | oliver | jeannie | F | 23 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 125 |
| 12 | oliver | mary | F | 13 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 125 |
| 10 | oliver | robert | M | 17 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 125 |
| 9 | oliver | william | M | 21 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 125 |
| 19 | oneil | ann | F | 24 | Methodist | Irish | Ontario | Milliners | 83 |
| 10 | orwell | albert | M | 12 | Methodist | English | Ontario | No Occupation Listed | 14 |
| 8 | orwell | ann | F | 73 | Methodist | English | England | No Occupation Listed | 14 |
| 9 | orwell | elizabeth | F | 36 | Methodist | English | England | No Occupation Listed | 14 |