Residents of Bryson (Village) & Upper Litchfield — Sub-district K, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 19 | obrien | bridget | F | 46 | Wesleyan Methodist | Irish | Ireland | No Occupation Listed | 199 |
| 2 | obrien | bridget | F | 5 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 199 |
| 22 | obrien | cornelius | M | 17 | Wesleyan Methodist | Irish | Quebec | Farmers, general and nfs | 199 |
| 24 | obrien | james | M | 13 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 199 |
| 5 | obrien | john | M | 27 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 19 |
| 1 | obrien | john | M | 7 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 199 |
| 20 | obrien | margaret | F | 22 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 199 |
| 25 | obrien | mary | F | 9 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 199 |
| 21 | obrien | michael | M | 20 | Wesleyan Methodist | Irish | Quebec | Farmers, general and nfs | 199 |
| 18 | obrien | patrick | M | 52 | Wesleyan Methodist | Irish | Ireland | Farmers, general and nfs | 199 |
| 23 | obrien | patrick | M | 15 | Wesleyan Methodist | Irish | Quebec | Farmers, general and nfs | 199 |
| 24 | oconnor | bertha | F | 1 | Roman Catholic | Irish | Quebec | No Occupation Listed | 45 |
| 22 | oconnor | catherine | F | 12 | Roman Catholic | Irish | Quebec | No Occupation Listed | 45 |
| 21 | oconnor | charlotte | F | 33 | Roman Catholic | Irish | Ontario | No Occupation Listed | 45 |
| 19 | oconnor | elrick | M | 3 | Roman Catholic | Irish | Quebec | No Occupation Listed | 44 |
| 18 | oconnor | emma | F | 8 | Roman Catholic | Irish | Quebec | No Occupation Listed | 44 |
| 15 | oconnor | francis | M | 14 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 44 |
| 13 | oconnor | jane | F | 21 | Roman Catholic | Irish | Quebec | No Occupation Listed | 44 |
| 20 | oconnor | john | M | 30 | Roman Catholic | Irish | Quebec | Lumberers and loggers | 45 |
| 11 | oconnor | luke | M | 65 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 44 |
| 16 | oconnor | mary | F | 12 | Roman Catholic | Irish | Quebec | No Occupation Listed | 44 |
| 14 | oconnor | samuel | M | 16 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 44 |
| 12 | oconnor | susan | F | 46 | Roman Catholic | Irish | Quebec | No Occupation Listed | 44 |
| 17 | oconnor | susan | F | 10 | Roman Catholic | Irish | Quebec | No Occupation Listed | 44 |
| 23 | oconnor | thomas | M | 9 | Roman Catholic | Irish | Ontario | No Occupation Listed | 45 |
| 23 | omahony | michael | M | 16 | Roman Catholic | Irish | Ireland | No Occupation Listed | 163 |
| 6 | omeara | edward | M | 68 | Roman Catholic | Irish | Ireland | Dealer, merchant etc. (Wholesale & retail trade) | 132 |
| 10 | omeara | john | M | 20 | Roman Catholic | Irish | Ireland | law student, going to school | 132 |
| 11 | omeara | kate | F | 18 | Roman Catholic | Irish | Quebec | No Occupation Listed | 132 |
| 13 | omeara | lizzie | F | 14 | Roman Catholic | Irish | Quebec | No Occupation Listed | 132 |
| 14 | omeara | maggie | F | 12 | Roman Catholic | Irish | Quebec | No Occupation Listed | 132 |
| 7 | omeara | mary | F | 48 | Roman Catholic | Irish | Ireland | No Occupation Listed | 132 |
| 8 | omeara | michael | M | 25 | Roman Catholic | Irish | Ireland | Dealer, merchant etc. (Wholesale & retail trade) | 132 |
| 12 | omeara | minnie | F | 16 | Roman Catholic | Irish | Quebec | No Occupation Listed | 132 |
| 9 | omeara | patrick | M | 23 | Roman Catholic | Irish | Ireland | Dealer, merchant etc. (Wholesale & retail trade) | 132 |
| 15 | omeara | william | M | 10 | Roman Catholic | Irish | Quebec | No Occupation Listed | 132 |
| 20 | orourke | ann | F | 53 | Roman Catholic | Irish | Ireland | No Occupation Listed | 154 |
| 22 | orourke | ann | F | 25 | Roman Catholic | Irish | United States | No Occupation Listed | 154 |
| 23 | orourke | bridget | F | 24 | Roman Catholic | Irish | Quebec | No Occupation Listed | 154 |
| 2 | orourke | elizabeth | F | 13 | Roman Catholic | Irish | Quebec | No Occupation Listed | 154 |
| 25 | orourke | francis | M | 19 | Roman Catholic | Irish | Quebec | Labourers nfs | 154 |
| 19 | orourke | john | M | 76 | Roman Catholic | Irish | Ireland | lime burner | 154 |
| 24 | orourke | margaret | F | 22 | Roman Catholic | Irish | Quebec | No Occupation Listed | 154 |
| 21 | orourke | mary | F | 27 | Roman Catholic | Irish | United States | No Occupation Listed | 154 |
| 1 | orourke | william | M | 16 | Roman Catholic | Irish | Quebec | No Occupation Listed | 154 |