Residents of Ste. Angélique — Sub-district N, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 5 | obrien | alice | F | 55 | Roman Catholic | Irish | Ireland | No Occupation Listed | 104 |
| 10 | obrien | anny | F | 7 | Roman Catholic | Irish | Quebec | No Occupation Listed | 216 |
| 12 | obrien | daniel | M | 0 | Roman Catholic | Irish | Quebec | No Occupation Listed | 216 |
| 11 | obrien | james | M | 5 | Roman Catholic | Irish | Quebec | No Occupation Listed | 216 |
| 14 | obrien | mary | F | 20 | Roman Catholic | Irish | Ontario | No Occupation Listed | 223 |
| 2 | obrien | mary | F | 33 | Roman Catholic | Irish | Quebec | No Occupation Listed | 351 |
| 8 | obrien | william | M | 35 | Roman Catholic | Irish | Quebec | Dealer, merchant etc. (Wholesale & retail trade) | 216 |
| 4 | oconnor | catherine | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 351 |
| 1 | oconnor | daniel | M | 43 | Roman Catholic | Irish | Ontario | Hotel Keepers and Managers | 351 |
| 7 | oconnor | john | M | 3 | Roman Catholic | Irish | Quebec | No Occupation Listed | 351 |
| 3 | oconnor | mary | F | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 351 |
| 6 | oconnor | therese | F | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 351 |
| 8 | oconnor | william | M | 0 | Roman Catholic | Irish | Quebec | No Occupation Listed | 351 |
| 5 | ocouror | daniel | M | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 351 |
| 11 | otjik | abraham | M | 18 | Roman Catholic | Aboriginal peoples, n.s | Quebec | Commercial travellers | 21 |
| 11 | otjik | amable | M | 70 | Methodist | Aboriginal peoples, n.s | Quebec | Day labourers (e.g journalier) | 24 |
| 13 | otjik | angelique | F | 9 | Roman Catholic | Aboriginal peoples, n.s | Quebec | No Occupation Listed | 21 |
| 10 | otjik | basile | M | 59 | Roman Catholic | Aboriginal peoples, n.s | Quebec | No Occupation Listed | 21 |
| 12 | otjik | vincent | M | 13 | Roman Catholic | Aboriginal peoples, n.s | Quebec | No Occupation Listed | 21 |
| 23 | ouellette | nancy | F | 57 | Roman Catholic | French | Quebec | Farmers, general and nfs | 184 |
| 7 | ouimet | eustache | M | 27 | Roman Catholic | French | Quebec | Farmers, general and nfs | 6 |