Residents of Montréal, St. James', Ward—Quartier — Sub-district F, surnames I (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 3 | iler | burritt | M | 29 | Baptist | English | Quebec | Customs officers | 377 |
| 5 | iler | ellen | F | 2 | Presbyterian | Scottish | Quebec | No Occupation Listed | 377 |
| 4 | iler | jessie | F | 22 | Presbyterian | Scottish | Quebec | No Occupation Listed | 377 |
| 5 | iolicoeur | christine | F | 53 | Roman Catholic | French | Quebec | No Occupation Listed | 495 |
| 6 | iolicoeur | delima | F | 30 | Roman Catholic | French | Quebec | No Occupation Listed | 495 |
| 18 | irvin | annie | F | 42 | Roman Catholic | Irish | Ireland | No Occupation Listed | 146 |
| 23 | irvin | catherine | F | 3 | Roman Catholic | Irish | Quebec | No Occupation Listed | 146 |
| 22 | irvin | james | M | 5 | Roman Catholic | Irish | Quebec | No Occupation Listed | 146 |
| 21 | irvin | john | M | 6 | Roman Catholic | Irish | Quebec | No Occupation Listed | 146 |
| 20 | irvin | mary | F | 8 | Roman Catholic | Irish | Quebec | No Occupation Listed | 146 |
| 17 | irvin | thomas | M | 45 | Roman Catholic | Irish | Ireland | Tinsmiths and Tinners and Tinkers | 146 |
| 19 | irvin | william | M | 9 | Roman Catholic | Irish | Quebec | No Occupation Listed | 146 |
| 18 | isabelle | cordelia | F | 13 | Roman Catholic | French | Quebec | Seamstress | 417 |
| 16 | isabelle | elise | F | 33 | Roman Catholic | French | Quebec | No Occupation Listed | 417 |
| 17 | isabelle | joseph | M | 16 | Roman Catholic | French | Quebec | Workers nfs | 417 |
| 21 | isabelle | malonia | F | 7 | Roman Catholic | French | Quebec | No Occupation Listed | 417 |
| 19 | isabelle | marie | F | 11 | Roman Catholic | French | Quebec | No Occupation Listed | 417 |
| 20 | isabelle | narcisse | M | 9 | Roman Catholic | French | Quebec | No Occupation Listed | 417 |
| 22 | isabelle | olivier | M | 0 | Roman Catholic | French | Quebec | No Occupation Listed | 417 |
| 15 | isabelle | thomas | M | 47 | Roman Catholic | French | Quebec | Dealer, merchant etc. (Wholesale & retail trade) | 417 |