Residents of Cavan — Sub-district C, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 8 | ohara | agnus | F | 36 | Presbyterian | Irish | Ireland | No Occupation Listed | 96 |
| 18 | ohara | elisabeth | F | 70 | Methodist | Irish | Ireland | No Occupation Listed | 67 |
| 7 | ohara | james | M | 40 | Presbyterian | Irish | Ireland | Farmers, general and nfs | 96 |
| 9 | ohara | james | M | 12 | Presbyterian | Irish | Ontario | No Occupation Listed | 96 |
| 13 | ohara | jemima | F | 4 | Presbyterian | Irish | Ontario | No Occupation Listed | 96 |
| 11 | ohara | mary | F | 8 | Presbyterian | Irish | Ontario | No Occupation Listed | 96 |
| 17 | ohara | oliver | M | 41 | Methodist | Irish | Ireland | Farmers, general and nfs | 67 |
| 12 | ohara | sarah | F | 6 | Presbyterian | Irish | Ontario | No Occupation Listed | 96 |
| 10 | ohara | william | M | 10 | Presbyterian | Irish | Ontario | No Occupation Listed | 96 |
| 19 | omenie | mary | F | 23 | Methodist | Irish | Ontario | Servants nfs | 171 |