Residents of St. John, Dukis, Ward—Quartier — Sub-district E, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 11 | obrien | ellen | F | 19 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 9 |
| 10 | obrien | julia | F | 62 | Roman Catholic | Irish | Ireland | No Occupation Listed | 9 |
| 9 | obrien | timothy | M | 70 | Roman Catholic | Irish | Ireland | Labourers nfs | 9 |
| 21 | oconnor | agnes | F | 8 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 203 |
| 20 | oconnor | mary | F | 30 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 203 |
| 23 | oconnor | rebecca | F | 2 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 203 |
| 19 | oconnor | terence | M | 32 | Roman Catholic | Irish | Ireland | Seamen | 203 |
| 22 | oconnor | thomas | M | 7 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 203 |
| 6 | oconor | john | M | 25 | Episcopal | English | New Brunswick | No Occupation Listed | 147 |
| 15 | olice | arthur | M | 19 | Baptist | English | New Brunswick | Clerk, nfs | 320 |
| 14 | olice | jane | F | 42 | Baptist | Scottish | New Brunswick | No Occupation Listed | 320 |
| 13 | olice | william | M | 43 | Baptist | English | New Brunswick | Customs officers | 320 |
| 16 | olice | william | M | 15 | Baptist | English | New Brunswick | Clerk, nfs | 320 |
| 21 | oliver | margret | F | 40 | Baptist | English | New Brunswick | No Occupation Listed | 3 |
| 11 | omegan | alice | F | 2 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 19 |
| 10 | omegan | cassie | F | 22 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 19 |
| 12 | omegan | jas | M | 0 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 19 |
| 9 | omegan | john | M | 28 | Roman Catholic | Irish | Ireland | Dealer, merchant etc. (Wholesale & retail trade) | 19 |
| 16 | oneil | agnes | F | 20 | Roman Catholic | Irish | New Brunswick | Dressmakers | 202 |
| 17 | oneil | annie | F | 25 | Roman Catholic | Irish | New Brunswick | Servants nfs | 316 |
| 24 | oneil | daniel | M | 64 | Roman Catholic | Irish | Ireland | Seamen | 157 |
| 18 | oneil | francis | M | 13 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 202 |
| 14 | oneil | hannah | F | 54 | Roman Catholic | Irish | Ireland | No Occupation Listed | 202 |
| 13 | oneil | james | M | 50 | Roman Catholic | Irish | Ireland | Labourers nfs | 202 |
| 17 | oneil | joseph | M | 18 | Roman Catholic | Irish | New Brunswick | Labourers nfs | 202 |
| 25 | oneil | katherine | F | 52 | Roman Catholic | Irish | Ireland | No Occupation Listed | 157 |
| 15 | oneil | teresa | F | 22 | Roman Catholic | Irish | New Brunswick | Tailors and tailoresses | 202 |
| 8 | orr | annie | F | 6 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 25 |
| 6 | orr | james | M | 30 | Anglican | Irish | New Brunswick | Seamen | 25 |
| 7 | orr | martha | F | 25 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 25 |
| 10 | orr | martha | F | 2 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 25 |
| 9 | orr | teressa | F | 4 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 25 |
| 16 | outram | edmund | M | 36 | Episcopal | Scottish | Scotland | Dealer, merchant etc. (Wholesale & retail trade) | 20 |
| 19 | outram | edmund | M | 4 | Episcopal | Scottish | New Brunswick | No Occupation Listed | 20 |
| 17 | outram | margret | F | 31 | Episcopal | Irish | Ireland | No Occupation Listed | 20 |
| 18 | outram | margret | F | 6 | Episcopal | Scottish | New Brunswick | No Occupation Listed | 20 |
| 7 | owens | anne | F | 65 | Roman Catholic | Irish | Ireland | No Occupation Listed | 191 |
| 17 | owens | mary | F | 50 | Roman Catholic | Irish | Ireland | No Occupation Listed | 88 |
| 16 | owens | patrick | M | 64 | Roman Catholic | Irish | New Brunswick | Policemen and detectives, employer unknown | 88 |