Residents of Euphrasia — Sub-district C, surnames I (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 8 | irvine | james | M | 29 | Methodist | Irish | Ontario | Farmers, general and nfs | 15 |
| 11 | irvine | maria | F | 23 | Methodist | Irish | Ontario | No Occupation Listed | 15 |
| 9 | irvine | mary | F | 33 | Methodist | Irish | Ontario | No Occupation Listed | 15 |
| 10 | irvine | sophia | F | 25 | Methodist | Irish | Ontario | No Occupation Listed | 15 |
| 14 | irwin | ann | F | 48 | Anglican | Irish | Ireland | No Occupation Listed | 136 |
| 19 | irwin | ann | F | 15 | Anglican | Irish | Ontario | No Occupation Listed | 136 |
| 16 | irwin | charles | M | 22 | Anglican | Irish | Ontario | Farmers, general and nfs | 136 |
| 15 | irwin | christopher | M | 24 | Anglican | Irish | Ontario | Farmers, general and nfs | 136 |
| 18 | irwin | elizabeth | F | 16 | Anglican | Irish | Ontario | No Occupation Listed | 136 |
| 7 | irwin | esther | F | 17 | Episcopal Methodist | Irish | Quebec | No Occupation Listed | 280 |
| 7 | irwin | flora | F | 17 | Presbyterian | Irish | Ontario | No Occupation Listed | 211 |
| 4 | irwin | george | M | 21 | Presbyterian | Irish | Ontario | Farmers, general and nfs | 211 |
| 17 | irwin | isaac | M | 21 | Anglican | Irish | Ontario | Farmers, general and nfs | 136 |
| 25 | irwin | james | M | 28 | Anglican | Irish | Ireland | Farmers, general and nfs | 279 |
| 8 | irwin | james | M | 0 | Episcopal Methodist | Irish | Quebec | No Occupation Listed | 280 |
| 13 | irwin | john | M | 55 | Anglican | Irish | Ireland | Farmers, general and nfs | 136 |
| 21 | irwin | john | M | 12 | Anglican | Irish | Ontario | No Occupation Listed | 136 |
| 25 | irwin | john | M | 60 | Presbyterian | Irish | Ireland | Farmers, general and nfs | 211 |
| 5 | irwin | latesha | F | 20 | Presbyterian | Irish | Ontario | No Occupation Listed | 211 |
| 4 | irwin | lavina | F | 3 | Methodist | Irish | Quebec | No Occupation Listed | 279 |
| 5 | irwin | lucy | F | 0 | Methodist | Irish | Quebec | No Occupation Listed | 279 |
| 2 | irwin | mary | F | 7 | Methodist | Irish | Quebec | No Occupation Listed | 279 |
| 22 | irwin | mary | F | 22 | Presbyterian | Irish | Ontario | No Occupation Listed | 201 |
| 9 | irwin | mary | F | 9 | Presbyterian | Irish | Ontario | No Occupation Listed | 211 |
| 1 | irwin | nancy | F | 43 | Presbyterian | Irish | Ireland | No Occupation Listed | 211 |
| 6 | irwin | nancy | F | 19 | Presbyterian | Irish | Ontario | No Occupation Listed | 211 |
| 6 | irwin | nicholas | M | 33 | Episcopal Methodist | Irish | Ireland | Farmers, general and nfs | 280 |
| 20 | irwin | rebecca | F | 13 | Anglican | Irish | Ontario | No Occupation Listed | 136 |
| 8 | irwin | richard | M | 13 | Presbyterian | Irish | Ontario | No Occupation Listed | 211 |
| 2 | irwin | robert | M | 24 | Presbyterian | Irish | Ontario | Farmers, general and nfs | 211 |
| 3 | irwin | samuel | M | 23 | Presbyterian | Irish | Ontario | Farmers, general and nfs | 211 |
| 1 | irwin | sarah | F | 25 | Methodist | Irish | Quebec | No Occupation Listed | 279 |
| 3 | irwin | william | M | 5 | Methodist | Irish | Quebec | No Occupation Listed | 279 |
| 21 | irwin | william | M | 26 | Presbyterian | Irish | Ontario | Farmers, general and nfs | 201 |