Residents of Cavan — Sub-district C, surnames I (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 13 | ingrim | mary | F | 29 | Anglican | Irish | Ireland | Servants nfs | 197 |
| 10 | irwen | ann | F | 70 | Anglican | Irish | Ireland | No Occupation Listed | 6 |
| 9 | irwen | john | M | 80 | Anglican | Irish | Ireland | Farmers, general and nfs | 6 |
| 11 | irwen | william | M | 30 | Anglican | Irish | Ontario | Farmers, general and nfs | 6 |
| 8 | islister | e | F | 3 | Presbyterian | Scottish | Ontario | No Occupation Listed | 136 |
| 3 | islister | elizibeth | F | 43 | Presbyterian | Scottish | Ontario | No Occupation Listed | 136 |
| 6 | islister | jacob | M | 11 | Presbyterian | Scottish | Ontario | No Occupation Listed | 136 |
| 5 | islister | margret | F | 13 | Presbyterian | Scottish | Ontario | No Occupation Listed | 136 |
| 4 | islister | thomas | M | 14 | Presbyterian | Scottish | Ontario | No Occupation Listed | 136 |
| 2 | islister | william | M | 42 | Presbyterian | Scottish | Scotland | Blacksmiths | 136 |
| 7 | islister | william | M | 4 | Presbyterian | Scottish | Ontario | No Occupation Listed | 136 |