Residents of Fredericton, St. Ann’s, Ward—Quartier — Sub-district B, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 18 | odonnel | sarah | F | 20 | Roman Catholic | Irish | New Brunswick | Servants nfs | 86 |
| 20 | oleary | mary | F | 52 | Roman Catholic | Irish | Ireland | Musicians | 286 |
| 12 | oneil | charles | M | 11 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 109 |
| 10 | oneil | edward | M | 19 | Roman Catholic | Irish | New Brunswick | Bakers | 109 |
| 3 | oneil | edward | M | 72 | Anglican | Irish | Ireland | Boot and shoemakers and repairers | 132 |
| 8 | oneil | elizabeth | F | 49 | Roman Catholic | Irish | Ireland | No Occupation Listed | 109 |
| 7 | oneil | hugh | M | 55 | Roman Catholic | Irish | Ireland | Bakers | 109 |
| 9 | oneil | hugh | M | 23 | Roman Catholic | Irish | New Brunswick | Bakers | 109 |
| 11 | oneil | mary | F | 16 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 109 |
| 8 | otool | harry | M | 11 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 241 |
| 5 | otool | john | M | 42 | Roman Catholic | Irish | Ireland | Metal moulders and coremakers and workers in… | 241 |
| 7 | otool | kate | F | 16 | Roman Catholic | Irish | New Brunswick | Tailors and tailoresses | 241 |
| 6 | otool | lizzie | F | 41 | Roman Catholic | Irish | New Brunswick | Dressmakers | 241 |
| 10 | otool | lizzie | F | 2 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 241 |
| 9 | otool | may | F | 7 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 241 |
| 11 | owens | edmond | M | 4 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 20 |
| 3 | owens | edward | M | 54 | Roman Catholic | Irish | New Brunswick | Carpenters | 20 |
| 6 | owens | elizabeth | F | 21 | Roman Catholic | Irish | New Brunswick | Dressmakers | 20 |
| 8 | owens | frank | M | 16 | Roman Catholic | Irish | New Brunswick | Carpenters | 20 |
| 5 | owens | john | M | 19 | Roman Catholic | Irish | New Brunswick | Clerks in shops and stores | 20 |
| 9 | owens | joseph | M | 10 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 20 |
| 10 | owens | louis | M | 7 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 20 |
| 7 | owens | peter | M | 17 | Roman Catholic | Irish | New Brunswick | Tanners nfs | 20 |
| 4 | owens | susannah | F | 47 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 20 |