Residents of Ste. Prudentienne — Sub-district M, surnames I (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 21 | irwin | john | M | 46 | Wesleyan Methodist | Irish | Quebec | Farmers, general and nfs | 296 |
| 25 | irwin | john | M | 14 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 296 |
| 2 | irwin | johnsin | M | 9 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 296 |
| 22 | irwin | mariya | F | 38 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 296 |
| 24 | irwin | samuel | M | 16 | Wesleyan Methodist | Irish | Quebec | Farmers, general and nfs | 296 |
| 23 | irwin | sarah | F | 18 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 296 |
| 1 | irwin | william | M | 11 | Wesleyan Methodist | Irish | Quebec | No Occupation Listed | 296 |