Residents of Clementsport — Sub-district H, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 18 | obrien | james | M | 10 | Papist | Irish | Nova Scotia | No Occupation Listed | 187 |
| 19 | obrien | johnie | M | 9 | Papist | Irish | Nova Scotia | No Occupation Listed | 187 |
| 17 | obrien | mary | F | 42 | Papist | Irish | Nova Scotia | No Occupation Listed | 187 |
| 16 | obrien | peter | M | 49 | Papist | Irish | New Brunswick | Farmers, general and nfs | 187 |
| 20 | obrien | susan | F | 4 | Papist | Irish | Nova Scotia | No Occupation Listed | 187 |
| 15 | oliver | w | M | 18 | Roman Catholic | English | Nova Scotia | "Farmer and fisherman" | 37 |