Residents of Campbellford, T-V — Sub-district H, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 12 | odell | charles | M | 27 | Anglican | Dutch | Ontario | Labourers nfs | 89 |
| 14 | odell | edith | F | 6 | Anglican | Dutch | Ontario | No Occupation Listed | 89 |
| 10 | odell | george | M | 21 | Presbyterian | Scottish | Ontario | Weavers | 104 |
| 13 | odell | mary | F | 28 | Anglican | Irish | Ontario | No Occupation Listed | 89 |
| 12 | odell | maud | F | 15 | Presbyterian | Scottish | Ontario | No Occupation Listed | 104 |
| 16 | odell | richard | M | 2 | Anglican | Dutch | Ontario | No Occupation Listed | 89 |
| 15 | odell | william | M | 4 | Anglican | Dutch | Ontario | No Occupation Listed | 89 |
| 11 | odell | william | M | 27 | Presbyterian | Scottish | Ontario | Labourers nfs | 104 |
| 1 | oglevie | aggie | F | 24 | Presbyterian | Irish | Ontario | No Occupation Listed | 44 |
| 3 | oglevie | george | M | 20 | Presbyterian | Irish | Ontario | No Occupation Listed | 44 |
| 24 | oglevie | john | M | 31 | Presbyterian | Irish | Ontario | Surveyors, general and nfs | 44 |
| 2 | oglevie | sarah | F | 22 | Presbyterian | Irish | Ontario | No Occupation Listed | 44 |
| 25 | oglevie | william | M | 36 | Presbyterian | Irish | Ontario | Labourers nfs | 44 |
| 6 | ohara | jane | F | 22 | Roman Catholic | Irish | Ontario | Servants nfs | 274 |
| 21 | oliver | sarah | F | 67 | Anglican | English | England | No Occupation Listed | 106 |
| 20 | oliver | thomas | M | 67 | Anglican | English | England | No Occupation Listed | 106 |
| 8 | oneil | frank | M | 5 | Anglican | Irish | Ontario | No Occupation Listed | 98 |
| 9 | oneil | hugh | M | 5 | Anglican | Irish | Ontario | No Occupation Listed | 98 |
| 7 | oneil | mary | F | 33 | Anglican | Irish | Quebec | No Occupation Listed | 98 |
| 10 | osullivan | bridget | F | 36 | Roman Catholic | Irish | Ontario | No Occupation Listed | 156 |
| 9 | osullivan | joseph | M | 46 | Roman Catholic | Irish | Ontario | Carpenters | 156 |
| 3 | osullivan | mary | F | 66 | Roman Catholic | Irish | Ireland | No Occupation Listed | 119 |
| 11 | osullivan | mary | F | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 156 |
| 12 | osullivan | sarah | F | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 156 |
| 10 | oulton | anne | F | 42 | Presbyterian | Dutch | Ontario | No Occupation Listed | 42 |
| 15 | oulton | annie | F | 10 | Presbyterian | English | Ontario | No Occupation Listed | 42 |
| 12 | oulton | catherine | F | 18 | Presbyterian | English | Ontario | No Occupation Listed | 42 |
| 9 | oulton | charles | M | 46 | Presbyterian | English | New Brunswick | Carpenters | 42 |
| 16 | oulton | charles | M | 8 | Presbyterian | English | Ontario | No Occupation Listed | 42 |
| 13 | oulton | george | M | 15 | Presbyterian | English | Ontario | Labourers nfs | 42 |
| 19 | oulton | luella | F | 0 | Presbyterian | English | Ontario | No Occupation Listed | 42 |
| 18 | oulton | mayble | F | 2 | Presbyterian | English | Ontario | No Occupation Listed | 42 |
| 17 | oulton | stanley | M | 6 | Presbyterian | English | Ontario | No Occupation Listed | 42 |
| 11 | oulton | thomas | M | 22 | Presbyterian | English | Ontario | Labourers nfs | 42 |
| 14 | oulton | william | M | 12 | Presbyterian | English | Ontario | No Occupation Listed | 42 |