Residents of Maryborough — Sub-district A, surnames I (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 13 | isaac | arthur | M | 3 | Methodist | Scottish | Ontario | No Occupation Listed | 363 |
| 11 | isaac | francis | M | 7 | Methodist | Scottish | Ontario | No Occupation Listed | 363 |
| 14 | isaac | fredric | M | 1 | Methodist | Scottish | Ontario | No Occupation Listed | 363 |
| 12 | isaac | gartrud | F | 5 | Methodist | Scottish | Ontario | No Occupation Listed | 363 |
| 10 | isaac | harriet | F | 28 | Methodist | English | Ontario | No Occupation Listed | 363 |
| 9 | isaac | john | M | 39 | Methodist | Scottish | Scotland | Ministers of Religion | 363 |
| 1 | isia | albert | M | 14 | Presbyterian | German | Ontario | No Occupation Listed | 109 |
| 4 | isia | george | M | 5 | Presbyterian | German | Ontario | No Occupation Listed | 109 |
| 5 | isia | marzam | F | 1 | Presbyterian | German | Ontario | No Occupation Listed | 109 |
| 3 | isia | noah | M | 8 | Presbyterian | German | Ontario | No Occupation Listed | 109 |
| 2 | isia | rosanne | F | 21 | Presbyterian | German | Ontario | No Occupation Listed | 109 |