Residents of King — Sub-district A, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 10 | obrien | alice | F | 42 | Methodist | English | Ontario | No Occupation Listed | 127 |
| 15 | obrien | benjamin | M | 14 | Methodist | Irish | Ontario | No Occupation Listed | 127 |
| 9 | obrien | daniel | M | 48 | Presbyterian | Irish | Ontario | Blacksmiths | 127 |
| 12 | obrien | edith | F | 19 | Methodist | Irish | Ontario | No Occupation Listed | 127 |
| 18 | obrien | edna | F | 3 | Methodist | Irish | Ontario | No Occupation Listed | 127 |
| 13 | obrien | fredrick | M | 17 | Methodist | Irish | Ontario | No Occupation Listed | 127 |
| 22 | obrien | fredrick | M | 14 | Presbyterian | Irish | Ontario | No Occupation Listed | 155 |
| 20 | obrien | hannah | F | 20 | Presbyterian | Irish | Ontario | No Occupation Listed | 155 |
| 19 | obrien | hugh | M | 41 | Presbyterian | Irish | Ontario | Farmers, general and nfs | 155 |
| 25 | obrien | james | M | 45 | Presbyterian | English | Ontario | Carpenters | 166 |
| 11 | obrien | joseph | M | 20 | Methodist | Irish | Ontario | Blacksmiths | 127 |
| 17 | obrien | kate | F | 8 | Methodist | Irish | Ontario | No Occupation Listed | 127 |
| 16 | obrien | lewis | M | 12 | Methodist | Irish | Ontario | No Occupation Listed | 127 |
| 14 | obrien | lincoln | M | 16 | Methodist | Irish | Ontario | No Occupation Listed | 127 |
| 21 | obrien | lozette | F | 18 | Presbyterian | Irish | Ontario | No Occupation Listed | 155 |
| 4 | obrien | mary | F | 65 | Roman Catholic | Scottish | Scotland | No Occupation Listed | 164 |
| 24 | obrien | mary | F | 10 | Presbyterian | Irish | Ontario | No Occupation Listed | 155 |
| 3 | obrien | peter | M | 70 | Roman Catholic | Irish | Ireland | Labourers nfs | 164 |
| 23 | obrien | william | M | 12 | Presbyterian | Irish | Ontario | No Occupation Listed | 155 |
| 8 | obrine | bridget | F | 17 | Roman Catholic | Irish | Ontario | Servants nfs | 70 |
| 17 | obrine | david | M | 21 | Roman Catholic | Irish | Ontario | river drivers | 91 |
| 14 | obrine | james | M | 25 | Roman Catholic | Irish | Ontario | river drivers | 91 |
| 15 | obrine | jane | F | 25 | Roman Catholic | Irish | Ontario | No Occupation Listed | 91 |
| 16 | obrine | john | M | 23 | Roman Catholic | Irish | Ontario | river drivers | 91 |
| 3 | obrine | john | M | 22 | Roman Catholic | Irish | Ontario | Labourers nfs | 114 |
| 20 | obrine | mary | F | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 91 |
| 18 | obrine | patrick | M | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 91 |
| 19 | obrine | william | M | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 91 |
| 10 | oconnor | bridget | F | 72 | Roman Catholic | Irish | Ireland | No Occupation Listed | 95 |
| 6 | oconnor | cathrine | F | 59 | Roman Catholic | Irish | Ireland | No Occupation Listed | 70 |
| 5 | oconnor | cornelius | M | 65 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 70 |
| 7 | oconnor | cornelius | M | 24 | Roman Catholic | Irish | Ontario | No Occupation Listed | 70 |
| 11 | oconnor | daniel | M | 45 | Roman Catholic | Irish | Ireland | Labourers nfs | 95 |
| 20 | oconnor | john | M | 40 | Roman Catholic | Irish | Ireland | Hotel Keepers and Managers | 176 |
| 23 | oconnor | john | M | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 176 |
| 15 | oconnor | john | M | 23 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 61 |
| 16 | oconnor | john | M | 65 | Roman Catholic | Irish | Ireland | Labourers nfs | 177 |
| 22 | oconnor | julia | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 176 |
| 25 | oconnor | laura | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 176 |
| 17 | oconnor | margret | F | 50 | Roman Catholic | Irish | Ireland | No Occupation Listed | 177 |
| 21 | oconnor | mary | F | 39 | Roman Catholic | Irish | Ontario | No Occupation Listed | 176 |
| 24 | oconnor | richard | M | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 176 |
| 16 | oconnor | susannah | F | 36 | Roman Catholic | Irish | Ireland | No Occupation Listed | 61 |
| 22 | oneil | ann | F | 29 | Roman Catholic | Irish | Ontario | No Occupation Listed | 128 |
| 16 | oneil | bridget | F | 27 | Roman Catholic | Irish | Ontario | No Occupation Listed | 148 |
| 24 | oneil | catharine | F | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 128 |
| 25 | oneil | elena | F | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 128 |
| 4 | oneil | eliza | F | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 129 |
| 1 | oneil | john | M | 43 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 129 |
| 5 | oneil | john | M | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 129 |
| 23 | oneil | mary | F | 9 | Roman Catholic | Irish | Ontario | No Occupation Listed | 128 |
| 2 | oneil | mary | F | 40 | Roman Catholic | Irish | Ontario | No Occupation Listed | 129 |
| 3 | oneil | mary | F | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 129 |
| 14 | oneil | mary | F | 60 | Roman Catholic | Irish | Ireland | No Occupation Listed | 148 |
| 21 | oneil | michael | M | 35 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 128 |
| 6 | oneil | michael | M | 66 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 146 |
| 5 | oneil | michel | M | 28 | Roman Catholic | Irish | England | Farmers, general and nfs | 146 |
| 13 | oneil | patric | M | 65 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 148 |
| 7 | oneil | patrick | M | 0 | Roman Catholic | Irish | Ontario | No Occupation Listed | 129 |
| 15 | oneil | patrick | M | 25 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 148 |
| 6 | oneil | roza | F | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 129 |
| 21 | oreilly | annie | F | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 147 |
| 15 | oreilly | bernard | M | 58 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 99 |
| 20 | oreilly | catherine | F | 48 | Roman Catholic | Irish | Ireland | No Occupation Listed | 207 |
| 19 | oreilly | charlotte | F | 26 | Roman Catholic | Scottish | Ontario | No Occupation Listed | 147 |
| 18 | oreilly | daniel | M | 17 | Roman Catholic | Irish | Ontario | Labourers nfs | 99 |
| 20 | oreilly | james | M | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 147 |
| 18 | oreilly | john | M | 33 | Roman Catholic | Irish | Ontario | Hotel Keepers and Managers | 147 |
| 17 | oreilly | owen | M | 24 | Roman Catholic | Irish | Ontario | Labourers nfs | 99 |
| 19 | oreilly | rose | F | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 99 |
| 16 | oreilly | sarah | F | 49 | Roman Catholic | Irish | Ireland | No Occupation Listed | 99 |
| 6 | osborn | annie | F | 36 | Methodist | Irish | Ontario | No Occupation Listed | 132 |
| 19 | oshea | ann | F | 60 | Roman Catholic | Irish | Ireland | No Occupation Listed | 196 |
| 22 | oshea | bridget | F | 16 | Roman Catholic | Irish | Ireland | No Occupation Listed | 196 |
| 18 | oshea | cornelius | M | 53 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 196 |
| 20 | oshea | mary | F | 24 | Roman Catholic | Irish | Ireland | No Occupation Listed | 196 |
| 21 | oshea | michael | M | 20 | Roman Catholic | Irish | Ireland | river drivers | 196 |
| 18 | osullivan | ann | F | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 96 |
| 13 | osullivan | anora | F | 49 | Roman Catholic | Irish | Ireland | No Occupation Listed | 96 |
| 19 | osullivan | anora | F | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 96 |
| 16 | osullivan | bridget | F | 26 | Roman Catholic | Irish | Ontario | No Occupation Listed | 96 |
| 20 | osullivan | catherine | F | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 96 |
| 14 | osullivan | cornelius | M | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 3 |
| 9 | osullivan | daniel | M | 22 | Roman Catholic | Irish | United States | Farmers, general and nfs | 3 |
| 10 | osullivan | edward | M | 20 | Roman Catholic | Irish | United States | Farmers, general and nfs | 3 |
| 12 | osullivan | ellen | F | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 3 |
| 15 | osullivan | hellen | F | 28 | Roman Catholic | Irish | Ontario | No Occupation Listed | 96 |
| 7 | osullivan | james | M | 55 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 3 |
| 11 | osullivan | james | M | 19 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 3 |
| 17 | osullivan | margret | F | 21 | Roman Catholic | Irish | Ontario | No Occupation Listed | 96 |
| 8 | osullivan | mary | F | 55 | Roman Catholic | Irish | Ireland | No Occupation Listed | 3 |
| 13 | osullivan | mary | F | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 3 |
| 12 | osullivan | patrick | M | 65 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 96 |
| 14 | osullivan | patrick | M | 35 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 96 |
| 9 | ovens | james | M | 63 | Anglican | Irish | Ireland | No Occupation Listed | 183 |
| 11 | owens | william | M | 60 | Presbyterian | Irish | Ireland | No Occupation Listed | 23 |