Residents of Bathurst — Sub-district A, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 18 | obrian | thomas | M | 65 | Roman Catholic | Irish | Ireland | Saddler and harness maker | 104 |
| 6 | obrien | bridget | F | 46 | Roman Catholic | Irish | Ontario | No Occupation Listed | 71 |
| 16 | obrien | ellen | F | 34 | Roman Catholic | Irish | Ontario | No Occupation Listed | 133 |
| 4 | obrien | george | M | 69 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 71 |
| 5 | obrien | harriet | F | 69 | Roman Catholic | English | Quebec | No Occupation Listed | 71 |
| 18 | obrien | john | M | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 133 |
| 17 | obrien | mary | F | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 133 |
| 19 | obrien | maud | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 133 |
| 15 | obrien | william | M | 40 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 133 |
| 20 | obrien | william | M | 0 | Roman Catholic | Irish | Ontario | No Occupation Listed | 133 |
| 23 | obrine | phillph | M | 61 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 33 |
| 2 | odlil | cleary | F | 26 | Presbyterian | Scottish | Ontario | No Occupation Listed | 164 |
| 4 | odlil | eadeath | F | 20 | Presbyterian | Scottish | Ontario | No Occupation Listed | 164 |
| 1 | odlil | georg | M | 57 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 164 |
| 3 | odlil | idie | F | 23 | Presbyterian | Scottish | Ontario | No Occupation Listed | 164 |
| 5 | odlil | mearn | F | 18 | Presbyterian | Scottish | Ontario | No Occupation Listed | 164 |
| 4 | ohare | bernard | M | 15 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 150 |
| 6 | ohare | bessy | F | 31 | Roman Catholic | Irish | Ontario | Tailors and tailoresses | 150 |
| 7 | ohare | catherine | F | 27 | Roman Catholic | Irish | Ontario | No Occupation Listed | 150 |
| 23 | ohare | edward | M | 70 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 150 |
| 2 | ohare | edward | M | 23 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 150 |
| 24 | ohare | elizabeth | F | 62 | Roman Catholic | Irish | Ireland | No Occupation Listed | 150 |
| 8 | ohare | elizabeth | F | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 150 |
| 5 | ohare | mary | F | 30 | Roman Catholic | Irish | Ontario | No Occupation Listed | 150 |
| 3 | ohare | patrick | M | 33 | Roman Catholic | Irish | Ontario | Miners | 150 |
| 1 | ohare | peter | M | 25 | Roman Catholic | Irish | Ontario | No Occupation Listed | 150 |
| 24 | oliver | george | M | 10 | Presbyterian | Scottish | Ontario | No Occupation Listed | 38 |
| 21 | osborn | claray | F | 21 | Universalist | English | United States | No Occupation Listed | 79 |
| 23 | osborn | dewitt | M | 18 | Universalist | English | United States | No Occupation Listed | 79 |
| 20 | osborn | elizabeth | F | 45 | Universalist | American | United States | No Occupation Listed | 79 |
| 25 | osborn | frederick | M | 13 | Universalist | English | United States | No Occupation Listed | 79 |
| 22 | osborn | lorintan | F | 19 | Universalist | English | United States | No Occupation Listed | 79 |
| 19 | osborn | orlando | M | 44 | Universalist | American | United States | Millers and related workers | 79 |
| 1 | osborn | wa | F | 11 | Universalist | English | United States | No Occupation Listed | 79 |
| 24 | osborn | william | M | 16 | Universalist | English | United States | No Occupation Listed | 79 |
| 11 | owns | charles | M | 27 | Presbyterian | British | United States | Clerk, nfs | 100 |
| 13 | owns | david | M | 5 | Presbyterian | British | United States | No Occupation Listed | 100 |
| 15 | owns | levey | F | 0 | Presbyterian | British | Ontario | No Occupation Listed | 100 |
| 12 | owns | mary | F | 24 | Presbyterian | American | United States | No Occupation Listed | 100 |
| 14 | owns | mary | F | 3 | Presbyterian | British | United States | No Occupation Listed | 100 |