Residents of Sandwich E — Sub-district L, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 21 | obrien | elisabeth | F | 30 | Roman Catholic | Irish | Ireland | No Occupation Listed | 155 |
| 22 | obrien | francis | F | 28 | Roman Catholic | Irish | Michigan | No Occupation Listed | 155 |
| 20 | obrien | george | M | 34 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 155 |
| 15 | obrien | james | M | 37 | Roman Catholic | Irish | Ontario | Carpenters | 3 |
| 17 | obrien | jane | F | 0 | Roman Catholic | Irish | Ontario | No Occupation Listed | 3 |
| 19 | obrien | john | M | 51 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 155 |
| 16 | obrien | martha | F | 30 | Roman Catholic | Irish | Ontario | No Occupation Listed | 3 |
| 23 | obrien | william | M | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 155 |
| 20 | oconnell | annie | F | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 90 |
| 14 | oconnell | bridget | F | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 90 |
| 15 | oconnell | catharine | F | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 157 |
| 19 | oconnell | celae | F | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 90 |
| 19 | oconnell | corneilus | M | 9 | Roman Catholic | Irish | Ontario | No Occupation Listed | 157 |
| 16 | oconnell | frances | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 157 |
| 11 | oconnell | hanorah | F | 45 | Roman Catholic | Irish | Ireland | No Occupation Listed | 90 |
| 12 | oconnell | jerey | M | 18 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 157 |
| 17 | oconnell | johanah | F | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 157 |
| 13 | oconnell | john | M | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 90 |
| 10 | oconnell | john | M | 23 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 157 |
| 12 | oconnell | margret | F | 21 | Roman Catholic | Irish | Ontario | No Occupation Listed | 90 |
| 18 | oconnell | margret | F | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 157 |
| 17 | oconnell | mary | F | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 90 |
| 9 | oconnell | mary | F | 40 | Roman Catholic | Irish | Ontario | Female farmer | 157 |
| 14 | oconnell | mary | F | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 157 |
| 11 | oconnell | michael | M | 21 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 157 |
| 10 | oconnell | patrick | M | 52 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 90 |
| 18 | oconnell | patrick | M | 9 | Roman Catholic | Irish | Ontario | No Occupation Listed | 90 |
| 13 | oconnell | patrick | M | 16 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 157 |
| 16 | oconnell | peter | M | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 90 |
| 15 | oconnell | thimothy | M | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 90 |
| 15 | oflynn | eward | M | 33 | Roman Catholic | Irish | Ireland | Land surveyors | 67 |
| 21 | okeefe | elisabeth | F | 44 | Roman Catholic | Irish | Montreal, Quebec | No Occupation Listed | 221 |
| 22 | okeefe | jane | F | 18 | Roman Catholic | Irish | United States | No Occupation Listed | 221 |
| 15 | okeefe | john | M | 5 | Roman Catholic | French | Ontario | No Occupation Listed | 396 |
| 23 | okeefe | margret | F | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 221 |
| 14 | okeefe | mary | F | 24 | Roman Catholic | French | Ontario | No Occupation Listed | 396 |
| 20 | okeefe | michael | M | 50 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 221 |
| 25 | okeefe | patrick | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 221 |
| 24 | okeefe | rosie | F | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 221 |
| 13 | okeefe | thomas | M | 40 | Roman Catholic | French | Ontario | Farmers, general and nfs | 396 |
| 1 | okeefe | william | M | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 221 |
| 24 | okeeff | denis | M | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 157 |
| 2 | okeeff | denis | M | 58 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 420 |
| 7 | okeeff | denis | M | 18 | Roman Catholic | Irish | Ontario | No Occupation Listed | 420 |
| 13 | okeeff | elizabeth | F | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 421 |
| 5 | okeeff | emelie | F | 23 | Roman Catholic | Irish | Ontario | No Occupation Listed | 420 |
| 8 | okeeff | emma | F | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 420 |
| 3 | okeeff | euphrasine | F | 58 | Roman Catholic | French | Ontario | No Occupation Listed | 420 |
| 9 | okeeff | helen | F | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 420 |
| 12 | okeeff | helen | F | 48 | Roman Catholic | Scottish | Ontario | No Occupation Listed | 421 |
| 4 | okeeff | jane | F | 25 | Roman Catholic | Irish | Ontario | No Occupation Listed | 420 |
| 6 | okeeff | john | M | 20 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 420 |
| 14 | okeeff | john | M | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 421 |
| 17 | okeeff | marguerite | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 421 |
| 15 | okeeff | mary | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 421 |
| 16 | okeeff | michael | M | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 421 |
| 18 | okeeffe | denis | M | 66 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 422 |
| 19 | okeeffe | helen | F | 66 | Roman Catholic | Irish | Ireland | No Occupation Listed | 422 |
| 19 | oliver | thomas | M | 50 | Anglican | English | England | river drivers | 128 |
| 24 | olives | willie | M | 20 | Episcopal | English | Not Mapped | No Occupation Listed | 4 |
| 4 | oneil | agnes | F | 18 | Roman Catholic | Irish | Ontario | No Occupation Listed | 65 |
| 16 | oneil | albert | M | 13 | Anglican | Irish | Ontario | No Occupation Listed | 67 |
| 1 | oneil | alex | M | 37 | Anglican | Irish | Ontario | Farmers, general and nfs | 14 |
| 13 | oneil | alexander | M | 59 | Anglican | Irish | Ireland | Farmers, general and nfs | 67 |
| 15 | oneil | alexander | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 121 |
| 18 | oneil | alexander | M | 67 | Anglican | Irish | Ireland | Farmers, general and nfs | 185 |
| 23 | oneil | amee | F | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 21 |
| 24 | oneil | amy | F | 6 | Anglican | Irish | Ontario | No Occupation Listed | 38 |
| 2 | oneil | barbary | F | 34 | Anglican | English | Ontario | No Occupation Listed | 14 |
| 17 | oneil | beatrice | F | 22 | Anglican | Irish | Ontario | No Occupation Listed | 49 |
| 20 | oneil | charles | M | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 121 |
| 17 | oneil | corah | F | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 121 |
| 1 | oneil | edward | M | 61 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 65 |
| 3 | oneil | edward | M | 25 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 65 |
| 15 | oneil | edward | M | 25 | Anglican | Irish | Ontario | Farmers, general and nfs | 67 |
| 21 | oneil | ellen | F | 23 | Roman Catholic | Irish | New York | No Occupation Listed | 21 |
| 18 | oneil | erland | M | 1 | Anglican | Irish | Ontario | No Occupation Listed | 49 |
| 4 | oneil | frank | M | 10 | Anglican | English | Ontario | No Occupation Listed | 14 |
| 7 | oneil | fred | M | 4 | Anglican | English | Ontario | No Occupation Listed | 14 |
| 3 | oneil | george | M | 12 | Anglican | English | Ontario | No Occupation Listed | 14 |
| 21 | oneil | george | M | 15 | Anglican | Irish | Ontario | No Occupation Listed | 185 |
| 5 | oneil | harry | M | 8 | Anglican | English | Ontario | No Occupation Listed | 14 |
| 17 | oneil | herbert | M | 9 | Anglican | Irish | Ontario | No Occupation Listed | 67 |
| 23 | oneil | isabell | F | 25 | Roman Catholic | Blank | Michigan | Farmers, general and nfs | 123 |
| 20 | oneil | james | M | 30 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 21 |
| 13 | oneil | james | M | 53 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 121 |
| 18 | oneil | james | M | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 121 |
| 22 | oneil | john | M | 35 | Anglican | Irish | Ontario | Farmers, general and nfs | 38 |
| 24 | oneil | john | M | 48 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 64 |
| 16 | oneil | john | M | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 121 |
| 22 | oneil | joseph | M | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 21 |
| 19 | oneil | lilie | F | 0 | Anglican | Irish | Ontario | No Occupation Listed | 49 |
| 8 | oneil | lionel | M | 2 | Anglican | English | Ontario | No Occupation Listed | 14 |
| 23 | oneil | loisie | F | 28 | Anglican | Irish | Ontario | No Occupation Listed | 38 |
| 6 | oneil | maggey | F | 6 | Anglican | English | Ontario | No Occupation Listed | 14 |
| 19 | oneil | margret | F | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 121 |
| 25 | oneil | mary | F | 1 | Anglican | Irish | Ontario | No Occupation Listed | 38 |
| 14 | oneil | mary | F | 36 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 121 |
| 19 | oneil | mary | F | 56 | Anglican | English | New Brunswick | No Occupation Listed | 185 |
| 14 | oneil | nancey | F | 56 | Anglican | Irish | Ireland | No Occupation Listed | 67 |
| 16 | oneil | william | M | 27 | Anglican | Irish | Ontario | Farmers, general and nfs | 49 |
| 2 | oneil | william | M | 35 | Roman Catholic | Irish | Massachusetts | Farmers, general and nfs | 65 |
| 22 | oneil | william | M | 36 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 123 |
| 20 | oneil | william | M | 17 | Anglican | Irish | Ontario | Farmers, general and nfs | 185 |
| 23 | oneill | annie | F | 33 | Roman Catholic | Irish | Ireland | No Occupation Listed | 108 |
| 9 | oneill | bridget | F | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 131 |
| 8 | oneill | edward | M | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 131 |
| 25 | oneill | jane | F | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 108 |
| 1 | oneill | jerimiah | M | 45 | Roman Catholic | Irish | Ontario | river drivers | 108 |
| 4 | oneill | johanah | F | 28 | Roman Catholic | Irish | Ontario | No Occupation Listed | 131 |
| 22 | oneill | john | M | 45 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 108 |
| 6 | oneill | john | M | 22 | Roman Catholic | Irish | Ontario | No Occupation Listed | 131 |
| 3 | oneill | margret | F | 50 | Roman Catholic | Irish | Ireland | No Occupation Listed | 131 |
| 7 | oneill | margret | F | 20 | Roman Catholic | Irish | Ontario | No Occupation Listed | 131 |
| 5 | oneill | mary | F | 26 | Roman Catholic | Irish | Ontario | No Occupation Listed | 131 |
| 2 | oneill | patrick | M | 61 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 131 |
| 10 | oneill | patrick | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 131 |
| 24 | oneill | thomas | M | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 108 |
| 11 | osullivan | annie | F | 45 | Roman Catholic | Irish | Ireland | No Occupation Listed | 94 |
| 11 | osullivan | annie | F | 21 | Roman Catholic | Irish | Ontario | No Occupation Listed | 101 |
| 12 | osullivan | ellen | F | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 94 |
| 9 | osullivan | eugene | M | 26 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 101 |
| 15 | osullivan | franeh | F | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 94 |
| 10 | osullivan | jeremiah | M | 23 | Roman Catholic | Irish | Ontario | No Occupation Listed | 101 |
| 14 | osullivan | john | M | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 101 |
| 13 | osullivan | mary | F | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 94 |
| 8 | osullivan | mary | F | 55 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 101 |
| 12 | osullivan | mary | F | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 101 |
| 13 | osullivan | patrick | M | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 101 |
| 14 | osullivan | roseie | F | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 94 |
| 16 | osullivan | timothy | M | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 94 |
| 3 | otto | izabelle | F | 30 | Anglican | Irish | Ontario | No Occupation Listed | 74 |
| 4 | otto | louisa | F | 0 | Anglican | German | Ontario | No Occupation Listed | 74 |
| 2 | otto | theodore | M | 34 | Anglican | German | United States | Painters, nfs | 74 |
| 18 | oucllett | marceline | F | 18 | Roman Catholic | French | Ontario | No Occupation Listed | 151 |
| 8 | ouellette | annie | F | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 61 |
| 1 | ouellette | clemance | F | 41 | Roman Catholic | French | Ontario | No Occupation Listed | 158 |
| 3 | ouellette | clemant | M | 12 | Roman Catholic | French | Ontario | No Occupation Listed | 158 |
| 1 | ouellette | j | M | 39 | Roman Catholic | French | Ontario | Ministers of Religion | 290 |
| 2 | ouellette | leoni | M | 14 | Roman Catholic | French | Ontario | No Occupation Listed | 158 |
| 25 | ouellette | norbert | M | 61 | Roman Catholic | French | Ontario | Farmers, general and nfs | 158 |
| 25 | ouellette | rose | F | 26 | Roman Catholic | French | Ontario | No Occupation Listed | 57 |