Residents of Euphemia — Sub-district E, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 18 | obrien | anne | F | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 110 |
| 17 | obrien | elizabeth | F | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 110 |
| 19 | obrien | martin | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 110 |
| 16 | obrien | mary | F | 18 | Roman Catholic | Irish | Ontario | No Occupation Listed | 110 |
| 14 | obrien | michael | M | 49 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 110 |
| 15 | obrien | winnefred | F | 47 | Roman Catholic | Irish | Ireland | No Occupation Listed | 110 |
| 13 | ogletree | ann | F | 64 | Episcopal Methodist | Scottish | Scotland | No Occupation Listed | 74 |
| 12 | ogletree | henry | M | 67 | Episcopal Methodist | Scottish | Ireland | No Occupation Listed | 74 |
| 15 | oliver | allie | F | 3 | Anglican | English | Ontario | No Occupation Listed | 21 |
| 16 | oliver | ehel | F | 0 | Anglican | English | Ontario | No Occupation Listed | 21 |
| 12 | oliver | george | M | 26 | Anglican | English | England | Butchers | 21 |
| 13 | oliver | jane | F | 25 | Anglican | English | Ontario | No Occupation Listed | 21 |
| 14 | oliver | mary | F | 6 | Anglican | English | Ontario | No Occupation Listed | 21 |