Residents of Etobicoke — Sub-district D, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 2 | obrien | ambrose | M | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 214 |
| 6 | obrien | annie | F | 35 | Roman Catholic | Irish | Ireland | No Occupation Listed | 214 |
| 5 | obrien | james | M | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 214 |
| 25 | obrien | mary | F | 33 | Roman Catholic | Irish | Ontario | No Occupation Listed | 213 |
| 3 | obrien | mary | F | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 214 |
| 23 | obrien | michael | M | 24 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 75 |
| 24 | obrien | miria | F | 29 | Roman Catholic | Irish | Ontario | No Occupation Listed | 75 |
| 1 | obrien | thomas | M | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 214 |
| 22 | obrien | thomas | M | 28 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 75 |
| 24 | obrien | william | M | 38 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 213 |
| 4 | obrien | william | M | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 214 |
| 20 | occonner | bridget | F | 20 | Roman Catholic | Irish | Ontario | No Occupation Listed | 208 |
| 23 | occonner | catharine | F | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 208 |
| 7 | occonner | daniel | M | 19 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 158 |
| 18 | occonner | daniel | M | 25 | Roman Catholic | Irish | Ontario | No Occupation Listed | 208 |
| 2 | occonner | elen | F | 57 | Roman Catholic | Irish | Ireland | No Occupation Listed | 158 |
| 22 | occonner | hannah | F | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 208 |
| 1 | occonner | hugh | M | 60 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 158 |
| 17 | occonner | johana | F | 50 | Roman Catholic | Irish | Ireland | No Occupation Listed | 208 |
| 5 | occonner | john | M | 21 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 158 |
| 16 | occonner | john | M | 50 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 208 |
| 17 | occonner | john | M | 29 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 211 |
| 19 | occonner | john | M | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 211 |
| 6 | occonner | martin | M | 21 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 158 |
| 4 | occonner | mary | F | 24 | Roman Catholic | Irish | Ontario | No Occupation Listed | 158 |
| 19 | occonner | mary | F | 22 | Roman Catholic | Irish | Ontario | No Occupation Listed | 208 |
| 18 | occonner | nelly | F | 22 | Roman Catholic | Irish | Ontario | No Occupation Listed | 211 |
| 3 | occonner | philip | M | 26 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 158 |
| 21 | occonner | william | M | 18 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 208 |
| 23 | odonnel | agnes | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 212 |
| 21 | odonnel | charles | M | 30 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 166 |
| 22 | odonnel | charles | M | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 212 |
| 20 | odonnel | elen | F | 53 | Roman Catholic | Irish | Ireland | No Occupation Listed | 166 |
| 19 | odonnel | james | M | 54 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 166 |
| 20 | odonnel | james | M | 27 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 212 |
| 23 | odonnel | jane | F | 24 | Roman Catholic | Irish | Ontario | No Occupation Listed | 166 |
| 21 | odonnel | john | M | 16 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 212 |
| 22 | odonnel | roey | F | 26 | Roman Catholic | Irish | Ontario | No Occupation Listed | 166 |
| 18 | odonnell | david | M | 20 | Roman Catholic | Irish | Ontario | Labourers nfs | 100 |
| 15 | odonnell | ellen | F | 32 | Roman Catholic | Irish | Ontario | Servants nfs | 100 |
| 13 | odonnell | james | M | 61 | Roman Catholic | Irish | Ireland | Other agricultural and animal husbandry workers | 100 |
| 14 | odonnell | margeret | F | 52 | Roman Catholic | Irish | Ireland | No Occupation Listed | 100 |
| 16 | odonnell | mary | F | 26 | Roman Catholic | Irish | Ontario | Servants nfs | 100 |
| 21 | odonnell | mary | F | 23 | Roman Catholic | Irish | Ontario | No Occupation Listed | 101 |
| 23 | odonnell | mary | F | 0 | Roman Catholic | Irish | Ontario | No Occupation Listed | 101 |
| 17 | odonnell | michael | M | 22 | Roman Catholic | Irish | Ontario | Cartwrights and wheelwrights | 100 |
| 20 | odonnell | thomas | M | 28 | Roman Catholic | Irish | Ontario | Butchers | 101 |
| 19 | odonnell | william | M | 18 | Roman Catholic | Irish | Ontario | Labourers nfs | 100 |
| 22 | odonnell | william | M | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 101 |
| 21 | ohara | mary | F | 74 | Roman Catholic | Irish | Ireland | No Occupation Listed | 216 |
| 11 | orth | catharine | F | 49 | Baptist | Irish | Ontario | No Occupation Listed | 95 |
| 10 | orth | johnathan | M | 60 | Baptist | German | Ontario | No Occupation Listed | 95 |
| 12 | orth | malcom | M | 24 | Baptist | German | Ontario | Farmers, general and nfs | 95 |