Residents of Howick — Sub-district A, surnames I (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 19 | ireland | alexander | M | 16 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 287 |
| 5 | ireland | allen | M | 4 | Presbyterian | Scottish | Ontario | No Occupation Listed | 305 |
| 17 | ireland | allen | M | 69 | Presbyterian | Scottish | Scotland | No Occupation Listed | 312 |
| 18 | ireland | andrew | M | 17 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 287 |
| 3 | ireland | andrew | M | 38 | Presbyterian | Scottish | Scotland | Farmers, general and nfs | 301 |
| 2 | ireland | andrew | M | 11 | Presbyterian | Scottish | Ontario | No Occupation Listed | 305 |
| 6 | ireland | ann | F | 2 | Presbyterian | Scottish | Scotland | No Occupation Listed | 301 |
| 6 | ireland | ann | F | 2 | Presbyterian | Scottish | Ontario | No Occupation Listed | 305 |
| 22 | ireland | david | M | 10 | Presbyterian | Scottish | Ontario | No Occupation Listed | 287 |
| 14 | ireland | george | M | 53 | Presbyterian | Scottish | Scotland | Farmers, general and nfs | 287 |
| 16 | ireland | isabella | F | 21 | Presbyterian | Scottish | Ontario | No Occupation Listed | 287 |
| 15 | ireland | jane | F | 44 | Presbyterian | Scottish | Scotland | No Occupation Listed | 287 |
| 20 | ireland | jane | F | 14 | Presbyterian | Scottish | Ontario | No Occupation Listed | 287 |
| 21 | ireland | jessie | F | 12 | Presbyterian | Scottish | Ontario | No Occupation Listed | 287 |
| 3 | ireland | john | M | 7 | Presbyterian | Scottish | Ontario | No Occupation Listed | 305 |
| 17 | ireland | margret | F | 18 | Presbyterian | Scottish | Ontario | No Occupation Listed | 287 |
| 4 | ireland | margret | F | 31 | Presbyterian | Scottish | Scotland | No Occupation Listed | 301 |
| 5 | ireland | margret | F | 3 | Presbyterian | Scottish | Scotland | No Occupation Listed | 301 |
| 1 | ireland | mary | F | 29 | Presbyterian | Scottish | Scotland | No Occupation Listed | 305 |
| 25 | ireland | robert | M | 37 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 305 |
| 4 | ireland | robert | M | 6 | Presbyterian | Scottish | Ontario | No Occupation Listed | 305 |
| 16 | irwin | anna | F | 27 | Presbyterian | Irish | Ontario | No Occupation Listed | 128 |
| 17 | irwin | anna | F | 2 | Presbyterian | Irish | Ontario | No Occupation Listed | 128 |
| 15 | irwin | charles | M | 27 | Presbyterian | Irish | Ontario | Farmers, general and nfs | 128 |
| 11 | irwin | daniel | M | 36 | Presbyterian | Irish | Ireland | Farmers, general and nfs | 13 |
| 25 | irwin | elizabeth | F | 6 | Presbyterian | Irish | Ontario | No Occupation Listed | 122 |
| 18 | irwin | elizabeth | F | 40 | Anglican | Irish | Ontario | No Occupation Listed | 125 |
| 13 | irwin | elizabeth | F | 22 | Methodist | Irish | Ontario | No Occupation Listed | 13 |
| 23 | irwin | emma | F | 15 | Presbyterian | Irish | Ontario | No Occupation Listed | 122 |
| 12 | irwin | francis | F | 38 | Presbyterian | Irish | Ireland | No Occupation Listed | 13 |
| 19 | irwin | henry | M | 35 | Anglican | Irish | Ontario | No Occupation Listed | 125 |
| 15 | irwin | isabela | F | 1 | Presbyterian | Irish | Ontario | No Occupation Listed | 13 |
| 17 | irwin | james | M | 56 | Anglican | Irish | Ireland | No Occupation Listed | 125 |
| 14 | irwin | jane | F | 3 | Presbyterian | Irish | Ontario | No Occupation Listed | 13 |
| 22 | irwin | john | M | 18 | Presbyterian | Irish | Ontario | Farmers, general and nfs | 122 |
| 18 | irwin | mabel | F | 0 | Presbyterian | Irish | Ontario | No Occupation Listed | 128 |
| 20 | irwin | mary | F | 42 | Presbyterian | Scottish | Ontario | No Occupation Listed | 122 |
| 21 | irwin | mary | F | 20 | Presbyterian | Irish | Ontario | No Occupation Listed | 122 |
| 1 | irwin | poley | F | 3 | Presbyterian | Irish | Ontario | No Occupation Listed | 122 |
| 13 | irwin | robert | M | 5 | Presbyterian | Irish | Ontario | No Occupation Listed | 13 |
| 21 | irwin | sarah | F | 19 | Presbyterian | Irish | Ireland | No Occupation Listed | 129 |
| 19 | irwin | william | M | 49 | Presbyterian | Irish | Ireland | Farmers, general and nfs | 122 |
| 24 | irwin | william | M | 12 | Presbyterian | Irish | Ontario | No Occupation Listed | 122 |
| 19 | irwin | william | M | 68 | Presbyterian | Irish | Ireland | Farmers, general and nfs | 129 |
| 20 | irwin | william | M | 22 | Presbyterian | Irish | Ireland | Farmers, general and nfs | 129 |