Residents of Montréal, St. Louis Ward—Quartier — Sub-district E, surnames I (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 19 | idler | edith | F | 2 | Anglican | German | Quebec | No Occupation Listed | 230 |
| 18 | idler | ernest | M | 4 | Anglican | German | Quebec | No Occupation Listed | 230 |
| 17 | idler | sophia | F | 29 | Anglican | Irish | Quebec | No Occupation Listed | 230 |
| 16 | idler | w | M | 44 | Anglican | German | Quebec | Butchers | 230 |
| 20 | idler | | F | 0 | Anglican | German | Quebec | No Occupation Listed | 230 |
| 19 | imbeau | angelique | F | 71 | Roman Catholic | French | Quebec | No Occupation Listed | 319 |
| 5 | imbeau | antoinette | F | 48 | Roman Catholic | French | Quebec | No Occupation Listed | 323 |
| 4 | imbeau | delima | F | 46 | Roman Catholic | French | Quebec | No Occupation Listed | 323 |
| 5 | internoscia | antonio | M | 41 | Presbyterian | Italian | Italy | Ministers of Religion | 21 |
| 22 | ireland | jane | F | 72 | Episcopal Methodist | English | England | No Occupation Listed | 221 |
| 14 | irempe | zoe | F | 67 | Roman Catholic | French | Quebec | No Occupation Listed | 379 |
| 16 | irvine | annie | F | 47 | Presbyterian | Scottish | Scotland | No Occupation Listed | 48 |
| 10 | irving | george | M | 30 | Presbyterian | English | Quebec | Railway agents (US) and clerks | 174 |
| 12 | irving | george | M | 3 | Presbyterian | English | Quebec | No Occupation Listed | 174 |
| 11 | irving | lessy | F | 28 | Presbyterian | Irish | Ireland | No Occupation Listed | 174 |
| 8 | isaac | annie | F | 6 | Presbyterian | Scottish | United States | No Occupation Listed | 50 |
| 5 | isaac | grace | F | 17 | Presbyterian | Scottish | Quebec | No Occupation Listed | 50 |
| 6 | isaac | jenny | F | 15 | Presbyterian | Scottish | Ontario | No Occupation Listed | 50 |
| 4 | isaac | lizie | F | 20 | Presbyterian | Scottish | Quebec | No Occupation Listed | 50 |
| 3 | isaac | margueret | F | 22 | Presbyterian | Scottish | Quebec | No Occupation Listed | 50 |
| 2 | isaac | mary | F | 45 | Presbyterian | Scottish | Quebec | No Occupation Listed | 50 |
| 7 | isaac | nelly | F | 13 | Presbyterian | Scottish | Ontario | No Occupation Listed | 50 |
| 1 | isaac | thomas | M | 50 | Presbyterian | Scottish | Scotland | Clerk, nfs | 50 |
| 17 | israel | betsey | F | 4 | Jewish | Jew | United States | No Occupation Listed | 418 |
| 18 | israel | mary | F | 2 | Jewish | Jew | United States | No Occupation Listed | 418 |
| 16 | israel | silly | F | 28 | Jewish | Jew | Poland | No Occupation Listed | 418 |
| 15 | israel | solomon | M | 25 | Jewish | Jew | Poland | Dealer, merchant etc. (Wholesale & retail trade) | 418 |