Residents of Sandwich, T-V — Sub-district K, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 18 | obrien | charles | M | 18 | Anglican | English | Ontario | Butchers | 10 |
| 16 | obrien | margaret | F | 42 | Anglican | English | England | Fish farm workers | 10 |
| 17 | obrien | martin | M | 21 | Anglican | English | Ontario | No Occupation Listed | 10 |
| 19 | obrien | william | M | 13 | Anglican | English | Ontario | No Occupation Listed | 10 |
| 20 | oconer | denis | M | 40 | Roman Catholic | Irish | Ontario | Ministers of Religion | 210 |
| 8 | oconner | kate | F | 25 | Roman Catholic | Irish | Ontario | Servants nfs | 195 |
| 12 | ouellette | agnes | F | 15 | Roman Catholic | French | Ontario | No Occupation Listed | 181 |
| 13 | ouellette | alma | F | 12 | Roman Catholic | French | Ontario | No Occupation Listed | 181 |
| 22 | ouellette | antoine | M | 76 | Roman Catholic | French | Ontario | Military officers | 49 |
| 8 | ouellette | archange | F | 53 | Roman Catholic | French | Ontario | No Occupation Listed | 181 |
| 17 | ouellette | archelle | M | 8 | Roman Catholic | French | Ontario | No Occupation Listed | 47 |
| 11 | ouellette | arthemise | F | 20 | Roman Catholic | French | Ontario | No Occupation Listed | 147 |
| 9 | ouellette | caroline | F | 49 | Roman Catholic | French | Ontario | No Occupation Listed | 147 |
| 23 | ouellette | catherine | F | 72 | Roman Catholic | French | Ontario | No Occupation Listed | 49 |
| 11 | ouellette | cecile | F | 20 | Roman Catholic | French | Ontario | No Occupation Listed | 181 |
| 25 | ouellette | charles | M | 13 | Roman Catholic | French | Ontario | No Occupation Listed | 49 |
| 2 | ouellette | edmund | M | 9 | Roman Catholic | French | Ontario | No Occupation Listed | 49 |
| 24 | ouellette | elizabeth | F | 34 | Roman Catholic | French | Ontario | No Occupation Listed | 49 |
| 19 | ouellette | elizabeth | F | 1 | Roman Catholic | French | Ontario | No Occupation Listed | 53 |
| 11 | ouellette | elizabeth | F | 39 | Roman Catholic | Irish | Quebec | No Occupation Listed | 172 |
| 13 | ouellette | ellen | F | 13 | Roman Catholic | French | Ontario | No Occupation Listed | 147 |
| 10 | ouellette | emily | F | 25 | Roman Catholic | French | Ontario | No Occupation Listed | 147 |
| 20 | ouellette | emma | F | 1 | Roman Catholic | French | Ontario | No Occupation Listed | 47 |
| 13 | ouellette | ernest | M | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 172 |
| 9 | ouellette | eugene | M | 24 | Roman Catholic | French | Ontario | No Occupation Listed | 181 |
| 14 | ouellette | francoise | F | 84 | Roman Catholic | French | Ontario | No Occupation Listed | 172 |
| 12 | ouellette | fredrick | M | 18 | Roman Catholic | French | Ontario | No Occupation Listed | 147 |
| 19 | ouellette | george | M | 3 | Roman Catholic | French | Ontario | No Occupation Listed | 47 |
| 8 | ouellette | isreal | M | 47 | Roman Catholic | French | Ontario | Carpenters | 147 |
| 14 | ouellette | jacob | M | 33 | Roman Catholic | French | Ontario | Drivers (public) | 53 |
| 1 | ouellette | janoreal | M | 12 | Roman Catholic | French | Ontario | No Occupation Listed | 49 |
| 12 | ouellette | jennie | F | 9 | Roman Catholic | Irish | Ontario | No Occupation Listed | 172 |
| 15 | ouellette | joseph | M | 33 | Roman Catholic | French | Ontario | Farmers, general and nfs | 47 |
| 16 | ouellette | joseph | M | 12 | Roman Catholic | French | Ontario | No Occupation Listed | 53 |
| 10 | ouellette | joseph | M | 41 | Roman Catholic | French | Ontario | Carpenters | 172 |
| 15 | ouellette | josephine | F | 26 | Roman Catholic | French | Ontario | No Occupation Listed | 53 |
| 16 | ouellette | mary | F | 30 | Roman Catholic | French | Ontario | No Occupation Listed | 47 |
| 14 | ouellette | radolph | M | 9 | Roman Catholic | French | Ontario | No Occupation Listed | 181 |
| 18 | ouellette | rosa | F | 5 | Roman Catholic | French | Ontario | No Occupation Listed | 47 |
| 10 | ouellette | rosalie | F | 22 | Roman Catholic | French | Ontario | No Occupation Listed | 181 |
| 17 | ouellette | sarah | F | 11 | Roman Catholic | French | Ontario | No Occupation Listed | 53 |
| 7 | ouellette | victor | M | 55 | Roman Catholic | French | Ontario | Government administrators | 181 |
| 18 | ouellette | william | M | 9 | Roman Catholic | French | Ontario | No Occupation Listed | 53 |
| 24 | ouellette | xavier | M | 26 | Roman Catholic | French | Ontario | Labourers nfs | 123 |