Residents of Wallaceburgh, Village — Sub-district H, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 7 | obrien | elutheria | F | 33 | Anglican | English | Ontario | No Occupation Listed | 8 |
| 6 | obrien | james | M | 37 | Roman Catholic | Irish | Ireland | Dealer, merchant etc. (Wholesale & retail trade) | 8 |
| 1 | ohare | annie | F | 12 | Roman Catholic | Irish | United States | No Occupation Listed | 156 |
| 2 | ohare | edward | M | 10 | Roman Catholic | Irish | United States | No Occupation Listed | 156 |
| 25 | ohare | sarah | F | 32 | Roman Catholic | Irish | Ontario | No Occupation Listed | 156 |
| 24 | ohare | thomas | M | 45 | Roman Catholic | Irish | Ontario | Bookkeepers nfs | 156 |
| 9 | ollerenshaw | hannah | F | 62 | Anglican | English | Ireland | No Occupation Listed | 173 |
| 12 | ollerenshaw | james | M | 24 | Anglican | English | Ontario | Bakers | 173 |
| 11 | ollerenshaw | john | M | 30 | Anglican | English | Ireland | Bakers | 173 |
| 8 | ollerenshaw | mark | M | 70 | Anglican | English | England | No Occupation Listed | 173 |
| 13 | ollerenshaw | robert | M | 18 | Anglican | English | Ontario | Bakers | 173 |
| 10 | ollerenshaw | thomas | M | 28 | Anglican | English | Ireland | Bakers | 173 |
| 5 | ouilette | victoria | F | 12 | Roman Catholic | French | Ontario | No Occupation Listed | 177 |