Residents of Mountain — Sub-district E, surnames I (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 20 | irvine | anna | F | 14 | Methodist | Irish | Ontario | No Occupation Listed | 100 |
| 16 | irvine | eliza | F | 40 | Methodist | Irish | Ontario | No Occupation Listed | 100 |
| 21 | irvine | elizabeth | F | 12 | Methodist | Irish | Ontario | No Occupation Listed | 100 |
| 17 | irvine | henry | M | 21 | Methodist | Irish | Ontario | Farmers, general and nfs | 100 |
| 18 | irvine | jane | F | 18 | Methodist | Irish | Ontario | No Occupation Listed | 100 |
| 19 | irvine | margaret | F | 16 | Methodist | Irish | Ontario | No Occupation Listed | 100 |
| 15 | irvine | thomas | M | 45 | Methodist | Irish | Ontario | Farmers, general and nfs | 100 |
| 22 | irvine | william | M | 7 | Methodist | Irish | Ontario | No Occupation Listed | 100 |
| 7 | isabel | william | M | 24 | Anglican | French | Ontario | Labourers nfs | 64 |