Residents of Adjala — Sub-district A, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 4 | ocallaghen | francis | M | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 169 |
| 8 | ocallaghen | james | M | 70 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 170 |
| 5 | ocallaghen | mary | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 169 |
| 9 | ocallaghen | mary | F | 75 | Roman Catholic | Irish | Ireland | No Occupation Listed | 170 |
| 3 | ocallaghen | sarah | F | 33 | Roman Catholic | Irish | Ontario | No Occupation Listed | 169 |
| 2 | ocallaghen | thomas | M | 39 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 169 |
| 22 | oconnell | agnes | F | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 185 |
| 12 | oconnell | catherine | F | 26 | Roman Catholic | Irish | Ontario | No Occupation Listed | 185 |
| 20 | oconnell | daniel | M | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 185 |
| 15 | oconnell | ellen | F | 22 | Roman Catholic | Irish | Ontario | No Occupation Listed | 185 |
| 18 | oconnell | james | M | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 185 |
| 14 | oconnell | john | M | 23 | Roman Catholic | Irish | Ontario | Blacksmiths | 185 |
| 11 | oconnell | mary | F | 46 | Roman Catholic | Irish | Ontario | No Occupation Listed | 185 |
| 13 | oconnell | mary | F | 25 | Roman Catholic | Irish | Ontario | No Occupation Listed | 185 |
| 21 | oconnell | micheal | M | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 185 |
| 19 | oconnell | patrick | M | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 185 |
| 10 | oconnell | thomas | M | 50 | Roman Catholic | Irish | Ireland | Blacksmiths | 185 |
| 17 | oconnell | thomas | M | 17 | Roman Catholic | Irish | Ontario | Blacksmiths | 185 |
| 16 | oconnell | william | M | 19 | Roman Catholic | Irish | Ontario | Blacksmiths | 185 |
| 15 | ohara | james | M | 53 | Roman Catholic | Irish | Ireland | Labourers nfs | 242 |
| 24 | ohara | mary | F | 18 | Roman Catholic | Irish | Ontario | Servants nfs | 104 |
| 16 | oleary | ann | F | 23 | Roman Catholic | Irish | Ontario | No Occupation Listed | 48 |
| 6 | oleary | annie | F | 25 | Roman Catholic | Irish | Ontario | No Occupation Listed | 256 |
| 21 | oleary | avagil | F | 50 | Roman Catholic | Irish | Ontario | No Occupation Listed | 258 |
| 19 | oleary | beatrice | F | 9 | Roman Catholic | Irish | Ontario | No Occupation Listed | 118 |
| 13 | oleary | bridget | F | 60 | Roman Catholic | Irish | Ireland | No Occupation Listed | 48 |
| 15 | oleary | bridget | F | 26 | Roman Catholic | Irish | Ontario | No Occupation Listed | 48 |
| 7 | oleary | camilla | F | 3 | Roman Catholic | Irish | Ontario | No Occupation Listed | 256 |
| 3 | oleary | catherine | F | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 184 |
| 12 | oleary | catherine | F | 38 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 5 | oleary | daniel | M | 30 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 256 |
| 23 | oleary | daniel | M | 23 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 258 |
| 11 | oleary | daniel | M | 40 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 87 |
| 12 | oleary | denis | M | 70 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 48 |
| 3 | oleary | dennis | M | 21 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 255 |
| 4 | oleary | edward | M | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 258 |
| 24 | oleary | ellen | F | 57 | Roman Catholic | Irish | Ireland | No Occupation Listed | 184 |
| 5 | oleary | ellen | F | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 184 |
| 2 | oleary | ellen | F | 24 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 255 |
| 13 | oleary | ellen | F | 9 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 22 | oleary | esther | F | 23 | Roman Catholic | Irish | Ontario | No Occupation Listed | 95 |
| 1 | oleary | francis | M | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 258 |
| 18 | oleary | hanora | F | 29 | Roman Catholic | Irish | Ontario | No Occupation Listed | 118 |
| 22 | oleary | hanora | F | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 118 |
| 20 | oleary | humphrey | M | 53 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 258 |
| 24 | oleary | james | M | 22 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 258 |
| 14 | oleary | jerianah | M | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 9 | oleary | johana | F | 30 | Roman Catholic | Irish | Ontario | No Occupation Listed | 86 |
| 22 | oleary | john | M | 26 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 258 |
| 8 | oleary | john | M | 36 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 47 |
| 10 | oleary | john | M | 40 | Roman Catholic | Irish | Ontario | river drivers | 105 |
| 21 | oleary | john | M | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 118 |
| 2 | oleary | john | M | 60 | Roman Catholic | Irish | Ireland | Teachers (unspecified) | 157 |
| 4 | oleary | joseph | M | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 184 |
| 1 | oleary | margaret | F | 23 | Roman Catholic | Irish | Ontario | No Occupation Listed | 184 |
| 9 | oleary | margeret | F | 35 | Roman Catholic | Irish | Ireland | No Occupation Listed | 47 |
| 21 | oleary | margeret | F | 65 | Roman Catholic | Irish | Ireland | No Occupation Listed | 95 |
| 23 | oleary | margeret | F | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 118 |
| 2 | oleary | mary | F | 21 | Roman Catholic | Irish | Ontario | No Occupation Listed | 184 |
| 1 | oleary | mary | F | 60 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 255 |
| 10 | oleary | mary | F | 3 | Roman Catholic | Irish | Ontario | No Occupation Listed | 47 |
| 8 | oleary | mary | F | 62 | Roman Catholic | Irish | Ireland | No Occupation Listed | 86 |
| 10 | oleary | mary | F | 24 | Roman Catholic | Irish | Ontario | No Occupation Listed | 86 |
| 15 | oleary | mary | F | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 23 | oleary | mary | F | 30 | Roman Catholic | Irish | Ontario | No Occupation Listed | 95 |
| 20 | oleary | mary | F | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 118 |
| 25 | oleary | michael | M | 18 | Roman Catholic | Irish | Ontario | No Occupation Listed | 258 |
| 16 | oleary | micheal | M | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 23 | oleary | patrick | M | 55 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 184 |
| 25 | oleary | patrick | M | 27 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 184 |
| 17 | oleary | patrick | M | 36 | Roman Catholic | Irish | Ireland | river drivers | 118 |
| 3 | oleary | stephen | M | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 258 |
| 17 | oleary | teresa | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 2 | oleary | thomas | M | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 258 |
| 14 | oleary | thos | M | 33 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 48 |
| 20 | oleary | william | M | 29 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 95 |
| 11 | oleary | | F | 0 | Roman Catholic | Irish | Ontario | No Occupation Listed | 47 |
| 1 | oneil | francis | M | 26 | Roman Catholic | Irish | Ontario | river drivers | 48 |
| 20 | oniell | ann | F | 24 | Roman Catholic | Irish | Ontario | No Occupation Listed | 44 |
| 1 | oniell | charles | M | 40 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 39 |
| 19 | oniell | james | M | 33 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 44 |
| 22 | oniell | james | M | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 44 |
| 23 | oniell | josh | M | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 44 |
| 25 | oniell | margeret | F | 70 | Roman Catholic | Irish | Ireland | No Occupation Listed | 39 |
| 21 | oniell | mary | F | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 44 |
| 25 | oniell | patrick | M | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 44 |
| 18 | oniell | patrick | M | 26 | Roman Catholic | Irish | Ontario | Common labourers or general labourers | 166 |
| 24 | oniell | peter | M | 3 | Roman Catholic | Irish | Ontario | No Occupation Listed | 44 |