Residents of Prince William — Sub-district I, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 15 | obrian | anna | F | 9 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 66 |
| 16 | obrian | john | M | 6 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 66 |
| 14 | obrian | lucy | F | 44 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 66 |
| 13 | obrian | thomas | M | 48 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 66 |
| 17 | obrian | thomas | M | 4 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 66 |
| 17 | orr | alexander | M | 50 | Presbyterian | Irish | New Brunswick | Farmers, general and nfs | 94 |
| 18 | orr | mary | F | 40 | Presbyterian | American | United States | No Occupation Listed | 94 |