Residents of Fredericton, King’s, Ward—Quartier — Sub-district E, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 21 | obrine | ellen | F | 35 | Roman Catholic | Irish | Ireland | No Occupation Listed | 155 |
| 22 | obrine | harry | F | 14 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 155 |
| 23 | obrine | mary | F | 11 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 155 |
| 20 | obrine | richard | M | 50 | Roman Catholic | Irish | Ireland | Labourers nfs | 155 |
| 7 | oconnor | kate | F | 21 | Roman Catholic | Irish | New Brunswick | Servants nfs | 139 |
| 24 | oharrah | elizabeth | F | 70 | Roman Catholic | Irish | Ireland | No Occupation Listed | 73 |
| 25 | oharrah | george | M | 20 | Roman Catholic | Irish | New Brunswick | Labourers nfs | 73 |
| 23 | oharrah | robert | M | 70 | Roman Catholic | Irish | Ireland | Labourers nfs | 73 |
| 3 | oleary | charles | M | 30 | Roman Catholic | Irish | Ireland | Factory labourers (non-specified manufacturing) | 1 |
| 1 | oleary | denis | M | 66 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 1 |
| 2 | oleary | elizabeth | F | 65 | Anglican | Irish | Ireland | No Occupation Listed | 1 |
| 4 | oleary | mary | F | 32 | Roman Catholic | Irish | Ireland | Tailors and tailoresses | 1 |
| 15 | orourk | frances | F | 1 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 125 |
| 10 | orourk | helen | F | 32 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 125 |
| 11 | orourk | kate | F | 8 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 125 |
| 12 | orourk | mary | F | 7 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 125 |
| 9 | orourk | owen | M | 35 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 125 |
| 14 | orourk | thomas | M | 4 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 125 |
| 13 | orourke | nellie | F | 5 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 125 |
| 25 | orpwood | chas | M | 40 | Anglican | English | England | Stone carvers or cutters and stone yard workers | 114 |
| 1 | orpwood | mary | F | 29 | Anglican | Irish | New Brunswick | No Occupation Listed | 114 |
| 17 | owens | agnes | F | 19 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 130 |
| 5 | owens | alice | F | 29 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 133 |
| 14 | owens | ann | F | 58 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 130 |
| 13 | owens | hugh | M | 70 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 130 |
| 4 | owens | hugh | M | 23 | Roman Catholic | Irish | New Brunswick | Labourers nfs | 133 |
| 16 | owens | lizie | F | 23 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 130 |
| 15 | owens | simon | M | 21 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 130 |
| 3 | owens | terrence | M | 33 | Roman Catholic | Irish | New Brunswick | Labourers nfs | 133 |