Residents of Collingwood — Sub-district B, surnames I (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 3 | idle | annie | F | 7 | Methodist | English | Ontario | No Occupation Listed | 84 |
| 25 | idle | elizabeth | F | 29 | Methodist | Irish | Ontario | No Occupation Listed | 84 |
| 5 | idle | frank | M | 3 | Methodist | English | Ontario | No Occupation Listed | 84 |
| 6 | idle | fred | M | 1 | Methodist | English | Ontario | No Occupation Listed | 84 |
| 15 | idle | h | F | 58 | | Scottish | England | No Occupation Listed | 4 |
| 2 | idle | lillie | F | 9 | Methodist | Irish | Ontario | No Occupation Listed | 84 |
| 4 | idle | lottie | F | 5 | Methodist | English | Ontario | No Occupation Listed | 84 |
| 24 | idle | thomas | M | 35 | Methodist | English | England | Cabinet makers | 84 |
| 1 | idle | thomas | M | 10 | Methodist | English | Ontario | No Occupation Listed | 84 |
| 14 | idle | thomas | M | 60 | Quaker/Society of Friends | English | England | Farmers, general and nfs | 4 |
| 1 | ingersoll | albert | M | 31 | Methodist | German | Ontario | Blacksmiths | 294 |
| 24 | ingersoll | nelson | M | 28 | Methodist | German | Ontario | Telegraph operators | 62 |
| 2 | ingersoll | theresa | F | 26 | Methodist | English | Ontario | No Occupation Listed | 294 |
| 16 | irwin | albert | M | 11 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 305 |
| 16 | irwin | ann | F | 47 | Episcopal Methodist | Irish | Ireland | No Occupation Listed | 79 |
| 22 | irwin | catherine | F | 4 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 79 |
| 14 | irwin | charles | M | 23 | Anglican | Irish | Ontario | Farmers, general and nfs | 339 |
| 1 | irwin | edger | M | 2 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 84 |
| 13 | irwin | eliza | F | 19 | Anglican | Irish | Ireland | No Occupation Listed | 82 |
| 18 | irwin | eliza | F | 7 | Methodist | Irish | Ontario | No Occupation Listed | 301 |
| 18 | irwin | erement | F | 14 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 79 |
| 24 | irwin | frederick | M | 10 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 84 |
| 19 | irwin | georgena | F | 11 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 79 |
| 3 | irwin | isabella | F | 0 | Anglican | Irish | Ontario | No Occupation Listed | 55 |
| 19 | irwin | isaiah | M | 5 | Methodist | Irish | Ontario | No Occupation Listed | 301 |
| 23 | irwin | james | M | 12 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 84 |
| 14 | irwin | james | M | 30 | Episcopal Methodist | Irish | Ontario | Farmers, general and nfs | 305 |
| 2 | irwin | jane | F | 0 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 84 |
| 17 | irwin | jane | F | 31 | Methodist | Irish | Ontario | No Occupation Listed | 301 |
| 21 | irwin | jerretta | F | 6 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 79 |
| 15 | irwin | john | M | 50 | Episcopal Methodist | Irish | Ireland | river drivers | 79 |
| 21 | irwin | john | M | 37 | Episcopal Methodist | Irish | Ontario | Farmers, general and nfs | 84 |
| 13 | irwin | margaret | F | 20 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 129 |
| 17 | irwin | margrat | F | 17 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 79 |
| 1 | irwin | margrate | F | 34 | Anglican | Irish | Ireland | No Occupation Listed | 55 |
| 14 | irwin | mary | F | 77 | Anglican | Irish | Ireland | No Occupation Listed | 82 |
| 22 | irwin | mary | F | 28 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 84 |
| 20 | irwin | mary | F | 70 | Methodist | Irish | Ireland | No Occupation Listed | 239 |
| 15 | irwin | mary | F | 28 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 305 |
| 17 | irwin | mary | F | 8 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 305 |
| 19 | irwin | michael | M | 68 | Methodist | Irish | Ireland | Farmers, general and nfs | 239 |
| 20 | irwin | nicholus | M | 8 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 79 |
| 25 | irwin | percy | M | 7 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 84 |
| 25 | irwin | robert | M | 38 | Anglican | Irish | Ireland | river drivers | 55 |
| 20 | irwin | samuel | M | 2 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 305 |
| 18 | irwin | settis | F | 6 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 305 |
| 12 | irwin | thomas | M | 27 | Anglican | Irish | Ireland | Farmers, general and nfs | 82 |
| 19 | irwin | wellington | M | 4 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 305 |
| 2 | irwin | william | M | 13 | Anglican | Irish | United States | No Occupation Listed | 55 |
| 16 | irwin | william | M | 42 | Methodist | Irish | Ireland | Farmers, general and nfs | 301 |
| 21 | irwin | william | M | 0 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 305 |
| 25 | isaac | albert | M | 4 | Methodist | Irish | Ontario | No Occupation Listed | 268 |
| 8 | isaac | anne | F | 33 | Methodist | Irish | Ontario | No Occupation Listed | 128 |
| 23 | isaac | charlotte | F | 29 | Methodist | German | Ontario | No Occupation Listed | 268 |
| 22 | isaac | george | M | 34 | Methodist | Irish | Ontario | river drivers | 268 |
| 24 | isaac | george | M | 6 | Methodist | Irish | Ontario | No Occupation Listed | 268 |
| 11 | isaac | gilbert | M | 24 | Methodist | Irish | Ontario | Farmers, general and nfs | 230 |
| 15 | isaac | gilbert | M | 24 | Methodist | Irish | Ontario | Farmers, general and nfs | 340 |
| 8 | isaac | hannah | F | 50 | Methodist | Irish | Ontario | No Occupation Listed | 230 |
| 9 | isaac | minnie | F | 12 | Methodist | Irish | Ontario | No Occupation Listed | 230 |
| 5 | isaac | thomas | M | 28 | Methodist | Irish | Ontario | Farmers, general and nfs | 49 |
| 7 | isaac | william | M | 63 | Methodist | Irish | Ireland | Farmers, general and nfs | 230 |