Residents of Ste. Catherine — Sub-district G, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 13 | oconners | laurence | M | 46 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 48 |
| 14 | oconners | mary | F | 37 | Roman Catholic | Irish | Quebec | No Occupation Listed | 48 |
| 15 | oconners | mary | F | 2 | Roman Catholic | Irish | Quebec | No Occupation Listed | 48 |
| 8 | ofarrell | anna | F | 14 | Roman Catholic | Irish | Quebec | No Occupation Listed | 47 |
| 4 | ofarrell | catherine | F | 19 | Roman Catholic | Irish | Quebec | No Occupation Listed | 47 |
| 10 | ofarrell | edmond | M | 7 | Roman Catholic | Irish | Quebec | No Occupation Listed | 47 |
| 7 | ofarrell | james | M | 16 | Roman Catholic | Irish | Quebec | No Occupation Listed | 47 |
| 5 | ofarrell | jhon | M | 16 | Roman Catholic | Irish | Quebec | No Occupation Listed | 47 |
| 11 | ofarrell | joseph | M | 5 | Roman Catholic | Irish | Quebec | No Occupation Listed | 47 |
| 12 | ofarrell | marguerite | F | 3 | Roman Catholic | Irish | Quebec | No Occupation Listed | 47 |
| 2 | ofarrell | mary | F | 43 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 47 |
| 6 | ofarrell | maryanne | F | 17 | Roman Catholic | Irish | Quebec | No Occupation Listed | 47 |
| 9 | ofarrell | michael | M | 10 | Roman Catholic | Irish | Quebec | No Occupation Listed | 47 |
| 3 | ofarrell | patrick | M | 21 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 47 |
| 10 | oleary | anne | F | 16 | Roman Catholic | Irish | Quebec | No Occupation Listed | 39 |
| 12 | oleary | brigite | F | 11 | Roman Catholic | Irish | Quebec | No Occupation Listed | 39 |
| 9 | oleary | heorter | M | 20 | Roman Catholic | Irish | Quebec | No Occupation Listed | 39 |
| 11 | oleary | honere | M | 14 | Roman Catholic | Irish | Quebec | No Occupation Listed | 39 |
| 5 | oleary | jhon | M | 40 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 39 |
| 8 | oleary | jhon | M | 22 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 39 |
| 6 | oleary | mary | F | 49 | Roman Catholic | Irish | Quebec | No Occupation Listed | 39 |
| 7 | oleary | patrick | M | 24 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 39 |