Residents of Sorel, Town—Ville — Sub-district A, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 24 | obrien | mary | F | 29 | Presbyterian | French Canadian | Quebec | No Occupation Listed | 418 |
| 13 | odelard | | M | 20 | Roman Catholic | French | Quebec | No Occupation Listed | 491 |
| 4 | oheir | allice | F | 24 | Roman Catholic | French Canadian | Quebec | No Occupation Listed | 248 |
| 19 | oheir | anna | F | 18 | Roman Catholic | French Canadian | Quebec | No Occupation Listed | 162 |
| 2 | oheir | mary | F | 26 | Roman Catholic | Irish | Quebec | No Occupation Listed | 347 |
| 23 | oheir | oswald | M | 7 | Roman Catholic | French Canadian | Quebec | No Occupation Listed | 156 |
| 5 | oheir | victorie | F | 58 | Roman Catholic | French | Quebec | No Occupation Listed | 348 |
| 19 | olivier | adele | F | 32 | Roman Catholic | French | Quebec | No Occupation Listed | 345 |
| 1 | olivier | alde | F | 39 | Roman Catholic | French Canadian | Quebec | No Occupation Listed | 308 |
| 6 | olivier | horace | M | 2 | Roman Catholic | French Canadian | Quebec | No Occupation Listed | 308 |
| 4 | olivier | leze | F | 10 | Roman Catholic | French Canadian | Quebec | No Occupation Listed | 308 |
| 3 | olivier | mina | F | 15 | Roman Catholic | French Canadian | Quebec | No Occupation Listed | 308 |
| 2 | olivier | parmelie | F | 17 | Roman Catholic | French Canadian | Quebec | No Occupation Listed | 308 |
| 5 | olivier | rene | M | 3 | Roman Catholic | French Canadian | Quebec | No Occupation Listed | 308 |
| 25 | olivier | zepherin | M | 45 | Roman Catholic | French Canadian | Quebec | Butchers | 308 |