Residents of Artemesia — Sub-district A, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 17 | obrein | edward | M | 36 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 33 |
| 19 | obrein | mary | F | 80 | Roman Catholic | Irish | Ontario | No Occupation Listed | 33 |
| 18 | obrein | william | M | 30 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 33 |
| 11 | obrion | james | M | 44 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 104 |
| 12 | obrion | mary | F | 35 | Roman Catholic | Irish | Ontario | No Occupation Listed | 104 |
| 19 | oliver | alice | F | 10 | Methodist | English | Ontario | No Occupation Listed | 87 |
| 12 | oliver | ann | F | 52 | Methodist | English | England | No Occupation Listed | 87 |
| 13 | oliver | elarch | F | 24 | Wesleyan Methodist | Irish | Ontario | Servants nfs | 10 |
| 16 | oliver | emma | F | 17 | Methodist | English | England | No Occupation Listed | 87 |
| 14 | oliver | emma | F | 1 | Wesleyan Methodist | Irish | Ontario | No Occupation Listed | 10 |
| 21 | oliver | james | M | 6 | Methodist | English | Ontario | No Occupation Listed | 87 |
| 14 | oliver | joseph | M | 21 | Methodist | English | England | Farmers, general and nfs | 87 |
| 18 | oliver | lilly | F | 12 | Methodist | English | England | No Occupation Listed | 87 |
| 15 | oliver | maria | F | 20 | Methodist | English | England | No Occupation Listed | 87 |
| 17 | oliver | may | F | 14 | Methodist | English | England | No Occupation Listed | 87 |
| 11 | oliver | robert | M | 48 | Methodist | English | England | Farmers, general and nfs | 87 |
| 20 | oliver | robert | M | 8 | Methodist | English | Ontario | No Occupation Listed | 87 |
| 13 | oliver | sarah | F | 23 | Methodist | English | England | No Occupation Listed | 87 |
| 15 | oliver | sarah | F | 11 | Wesleyan Methodist | Irish | Ontario | No Occupation Listed | 10 |
| 13 | omelie | charls | M | 0 | Presbyterian | Irish | Ontario | No Occupation Listed | 216 |
| 10 | omelie | elen | F | 10 | Presbyterian | Irish | Ontario | No Occupation Listed | 216 |
| 12 | omelie | jane | F | 2 | Presbyterian | Irish | Ontario | No Occupation Listed | 216 |
| 9 | omelie | jenet | F | 35 | Presbyterian | Scottish | Ontario | No Occupation Listed | 216 |
| 8 | omelie | john | M | 33 | Roman Catholic | Irish | Ontario | Teamsters (inc. mine driver, etc.) | 216 |
| 11 | omelie | john | M | 4 | Presbyterian | Irish | Ontario | No Occupation Listed | 216 |
| 11 | omely | bridget | F | 70 | Roman Catholic | Irish | Ireland | No Occupation Listed | 285 |
| 12 | omely | marten | M | 27 | Roman Catholic | Irish | Ireland | No Occupation Listed | 285 |
| 13 | omely | mary | F | 20 | Roman Catholic | Irish | Ireland | No Occupation Listed | 285 |
| 10 | omely | thomas | M | 70 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 285 |
| 3 | orr | allen | M | 15 | Presbyterian | Scottish | Ontario | No Occupation Listed | 148 |
| 5 | orr | ann | F | 12 | Presbyterian | Scottish | Ontario | No Occupation Listed | 148 |
| 2 | orr | catharine | F | 30 | Presbyterian | Scottish | Scotland | No Occupation Listed | 148 |
| 7 | orr | catharine | F | 7 | Presbyterian | Scottish | Ontario | No Occupation Listed | 148 |
| 8 | orr | elisabeth | F | 5 | Presbyterian | Scottish | Ontario | No Occupation Listed | 148 |
| 20 | orr | guy | M | 1 | Anglican | Irish | Ontario | No Occupation Listed | 344 |
| 4 | orr | jennet | F | 14 | Presbyterian | Scottish | Ontario | No Occupation Listed | 148 |
| 18 | orr | joseph | M | 5 | Anglican | Irish | Ontario | No Occupation Listed | 344 |
| 6 | orr | mary | F | 9 | Presbyterian | Scottish | Ontario | No Occupation Listed | 148 |
| 16 | orr | mathew | M | 30 | Anglican | Irish | Ontario | Farmers, general and nfs | 344 |
| 1 | orr | niel | M | 35 | Presbyterian | Scottish | Scotland | Farmers, general and nfs | 148 |
| 17 | orr | sarah | F | 24 | Anglican | Irish | Ontario | No Occupation Listed | 344 |
| 19 | orr | william | M | 3 | Anglican | Irish | Ontario | No Occupation Listed | 344 |
| 11 | osborn | mary | F | 65 | Methodist | Irish | Ireland | No Occupation Listed | 208 |
| 10 | osborn | thomas | M | 65 | Methodist | English | England | Farmers, general and nfs | 208 |