Residents of Southampton — Sub-district M, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 8 | obediah | hilman | M | 11 | Baptist | English | New Brunswick | No Occupation Listed | 328 |
| 7 | odbur | dunlop | M | 0 | Free Baptist | Scottish | New Brunswick | No Occupation Listed | 354 |
| 4 | odbur | stairs | M | 3 | Free Baptist | Irish | New Brunswick | No Occupation Listed | 331 |
| 15 | odonnell | cath | F | 38 | Baptist | Irish | New Brunswick | Servants nfs | 24 |
| 5 | oldham | caroline | F | 45 | Anglican | English | England | No Occupation Listed | 76 |
| 8 | oldham | charlotte | F | 17 | Anglican | English | New Brunswick | No Occupation Listed | 77 |
| 6 | oldham | john | M | 22 | Anglican | English | United States | Dealer, merchant etc. (Wholesale & retail trade) | 76 |
| 4 | oldham | joseph | M | 62 | Anglican | English | England | Sculptors | 76 |
| 7 | oldham | joseph | M | 20 | Anglican | English | New Brunswick | No Occupation Listed | 77 |
| 9 | oldham | nora | F | 10 | Anglican | English | New Brunswick | No Occupation Listed | 77 |
| 10 | oldham | william | M | 7 | Anglican | English | New Brunswick | No Occupation Listed | 77 |
| 5 | olive | johnston | F | 39 | Presbyterian | Scottish | New Brunswick | No Occupation Listed | 208 |
| 14 | olive | price | F | 38 | Free Baptist | English | New Brunswick | No Occupation Listed | 347 |
| 9 | oliver | greenlaw | M | 14 | Baptist | Scottish | New Brunswick | No Occupation Listed | 264 |
| 9 | olivia | barber | F | 1 | Presbyterian | English | New Brunswick | No Occupation Listed | 247 |
| 2 | oran_g_ | kelley | M | 3 | Baptist | English | New Brunswick | No Occupation Listed | 207 |
| 13 | oscar | moorse | M | 7 | Free Baptist | Scottish | New Brunswick | No Occupation Listed | 234 |