Residents of Petersville — Sub-district A, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 25 | oday | john | M | 14 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 169 |
| 8 | odonnell | annie | F | 8 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 131 |
| 2 | odonnell | catherine | F | 41 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 131 |
| 7 | odonnell | daniel | M | 11 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 131 |
| 6 | odonnell | ella | F | 14 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 131 |
| 9 | odonnell | george | M | 5 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 131 |
| 11 | odonnell | henry | M | 1 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 131 |
| 3 | odonnell | james | M | 22 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 131 |
| 10 | odonnell | martha | F | 3 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 131 |
| 1 | odonnell | roderick | M | 45 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 131 |
| 5 | odonnell | roderick | M | 16 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 131 |
| 4 | odonnell | thomas | M | 19 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 131 |
| 2 | ogden | beatrice | F | 1 | Free Baptist | English | New Brunswick | No Occupation Listed | 121 |
| 1 | ogden | edward | M | 3 | Free Baptist | English | New Brunswick | No Occupation Listed | 121 |
| 25 | ogden | ethel | F | 5 | Free Baptist | English | New Brunswick | No Occupation Listed | 121 |
| 23 | ogden | jane | F | 9 | Free Baptist | English | New Brunswick | No Occupation Listed | 121 |
| 24 | ogden | jessie | F | 7 | Free Baptist | English | New Brunswick | No Occupation Listed | 121 |
| 21 | ogden | susanna | F | 36 | Free Baptist | English | New Brunswick | No Occupation Listed | 121 |
| 20 | ogden | william | M | 38 | Free Baptist | English | New Brunswick | Farmers, general and nfs | 121 |
| 22 | ogden | william | M | 11 | Free Baptist | English | New Brunswick | No Occupation Listed | 121 |
| 8 | oleary | catharine | F | 36 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 186 |
| 6 | oleary | lawrence | M | 85 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 186 |
| 7 | oleary | mary | F | 83 | Roman Catholic | Irish | Ireland | No Occupation Listed | 186 |
| 15 | oneil | anne | F | 35 | Roman Catholic | Irish | Quebec | No Occupation Listed | 152 |
| 14 | oneil | catharine | F | 11 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 182 |
| 12 | oneil | catherine | F | 52 | Roman Catholic | Irish | Ireland | No Occupation Listed | 152 |
| 16 | oneil | catherine | M | 19 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 152 |
| 8 | oneil | charles | M | 55 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 154 |
| 12 | oneil | charles | M | 15 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 182 |
| 16 | oneil | daniel | M | 6 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 182 |
| 13 | oneil | edward | M | 21 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 152 |
| 17 | oneil | elizabeth | F | 17 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 152 |
| 11 | oneil | james | M | 50 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 152 |
| 14 | oneil | john | M | 33 | Roman Catholic | Irish | Quebec | No Occupation Listed | 152 |
| 10 | oneil | john | M | 17 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 182 |
| 18 | oneil | margaret | F | 2 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 182 |
| 13 | oneil | mary | F | 13 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 182 |
| 15 | oneil | susan | F | 9 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 182 |
| 9 | oneil | susanna | F | 37 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 182 |
| 17 | oneil | thomas | M | 4 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 182 |
| 8 | oneil | william | M | 47 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 182 |
| 11 | oneil | william | M | 15 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 182 |
| 21 | owler | wellington | M | 38 | Anglican | English | New Brunswick | Farmers, general and nfs | 88 |