Residents of Fitzroy — Sub-district I, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 3 | oconnors | edward | M | 21 | Roman Catholic | Irish | Ireland | river drivers | 165 |
| 9 | ohoro | elizabeth | F | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 8 | ohoro | ellen | F | 23 | Roman Catholic | Irish | Ontario | Weavers | 87 |
| 14 | ohoro | ellen | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 150 |
| 4 | ohoro | honor | F | 60 | Roman Catholic | Irish | Ireland | No Occupation Listed | 87 |
| 7 | ohoro | james | M | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 6 | ohoro | john | M | 18 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 13 | ohoro | judy | F | 35 | Roman Catholic | Irish | Ireland | No Occupation Listed | 150 |
| 3 | ohoro | martin | M | 60 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 87 |
| 10 | ohoro | martin | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 15 | ohoro | martin | M | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 150 |
| 5 | ohoro | mary | F | 20 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 12 | ohoro | patrich | M | 40 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 150 |
| 11 | ohoro | sarah | F | 9 | Roman Catholic | Irish | Ontario | No Occupation Listed | 87 |
| 11 | oneil | ann | F | 50 | Roman Catholic | Irish | Ireland | No Occupation Listed | 84 |
| 22 | oneil | bidget | F | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 20 | oneil | daniel | M | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 10 | oneil | daniel | M | 60 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 84 |
| 13 | oneil | daniel | M | 21 | Roman Catholic | Irish | Ontario | No Occupation Listed | 84 |
| 17 | oneil | ellen | F | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 84 |
| 21 | oneil | james | M | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 15 | oneil | joseph | M | 18 | Roman Catholic | Irish | Ontario | No Occupation Listed | 84 |
| 23 | oneil | mary | F | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 10 |
| 16 | oneil | mary | F | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 84 |
| 18 | oneil | michael | M | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 84 |
| 19 | oneil | peter | M | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 84 |
| 14 | oneil | thomas | M | 20 | Roman Catholic | Irish | Ontario | No Occupation Listed | 84 |
| 12 | oneil | william | M | 23 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 84 |
| 18 | owens | alice | F | 30 | Anglican | Irish | Ontario | No Occupation Listed | 4 |
| 20 | owens | alice | F | 7 | Anglican | Irish | Ontario | No Occupation Listed | 44 |
| 12 | owens | alice | F | 17 | Anglican | Irish | Ontario | No Occupation Listed | 87 |
| 1 | owens | angelina | F | 19 | Anglican | Irish | Ontario | No Occupation Listed | 168 |
| 8 | owens | catherine | F | 25 | Anglican | Irish | Ontario | No Occupation Listed | 87 |
| 7 | owens | eadger | M | 27 | Anglican | Irish | Ontario | Farmers, general and nfs | 87 |
| 20 | owens | edward | M | 36 | Presbyterian | Irish | Ontario | Carpenters | 19 |
| 2 | owens | edward | M | 40 | Anglican | Irish | Ontario | Farmers, general and nfs | 162 |
| 4 | owens | edward | M | 60 | Anglican | Irish | Ireland | Farmers, general and nfs | 87 |
| 5 | owens | eliza | F | 53 | Anglican | Irish | Ontario | No Occupation Listed | 87 |
| 22 | owens | elizabeth | F | 13 | Anglican | Irish | Ontario | No Occupation Listed | 4 |
| 17 | owens | elizabeth | F | 12 | Anglican | Irish | Ontario | No Occupation Listed | 44 |
| 7 | owens | ethel | F | 3 | Anglican | Irish | Ontario | No Occupation Listed | 162 |
| 11 | owens | fanny | F | 21 | Anglican | Irish | Ontario | No Occupation Listed | 80 |
| 13 | owens | frances | F | 13 | Anglican | Irish | Ontario | No Occupation Listed | 87 |
| 15 | owens | george | M | 38 | Anglican | Irish | Ontario | Farmers, general and nfs | 44 |
| 4 | owens | george | M | 8 | Anglican | Irish | Ontario | No Occupation Listed | 162 |
| 19 | owens | georgena | F | 8 | Anglican | Irish | Ontario | No Occupation Listed | 44 |
| 14 | owens | harriett | F | 24 | Anglican | Irish | Ontario | No Occupation Listed | 3 |
| 2 | owens | henrietta | F | 17 | Anglican | Irish | Ontario | No Occupation Listed | 168 |
| 10 | owens | james | M | 31 | Anglican | Irish | Ontario | Farmers, general and nfs | 80 |
| 12 | owens | jane | F | 68 | Anglican | Irish | Ireland | No Occupation Listed | 3 |
| 19 | owens | jane | F | 28 | Anglican | Irish | Ontario | No Occupation Listed | 4 |
| 23 | owens | jane | F | 58 | Anglican | Irish | Ireland | No Occupation Listed | 168 |
| 11 | owens | john | M | 68 | Anglican | Irish | Ireland | Farmers, general and nfs | 3 |
| 6 | owens | john | M | 31 | Anglican | Irish | Ontario | Farmers, general and nfs | 87 |
| 9 | owens | john | M | 34 | Anglican | Irish | Ontario | Farmers, general and nfs | 94 |
| 14 | owens | lavina | F | 10 | Anglican | Irish | Ontario | No Occupation Listed | 87 |
| 8 | owens | lily | F | 0 | Anglican | Irish | Ontario | No Occupation Listed | 162 |
| 21 | owens | margaret | F | 29 | Presbyterian | Irish | Ontario | No Occupation Listed | 19 |
| 22 | owens | margaret | F | 0 | Anglican | Irish | Ontario | No Occupation Listed | 44 |
| 5 | owens | margret | F | 7 | Anglican | Irish | Ontario | No Occupation Listed | 162 |
| 17 | owens | mary | F | 63 | Anglican | Irish | Ireland | No Occupation Listed | 4 |
| 22 | owens | mary | F | 8 | Presbyterian | Irish | Ontario | No Occupation Listed | 19 |
| 16 | owens | mary | F | 35 | Anglican | Irish | Ontario | No Occupation Listed | 44 |
| 18 | owens | mary | F | 10 | Anglican | Irish | Ontario | No Occupation Listed | 44 |
| 24 | owens | mazria | F | 26 | Anglican | Irish | Ontario | No Occupation Listed | 168 |
| 21 | owens | robert | M | 24 | Anglican | Irish | Ontario | Farmers, general and nfs | 4 |
| 23 | owens | robert | M | 6 | Presbyterian | Irish | Ontario | No Occupation Listed | 19 |
| 22 | owens | robert | M | 64 | | Irish | Ireland | Farmers, general and nfs | 168 |
| 9 | owens | robert | M | 23 | Anglican | Irish | Ontario | Farmers, general and nfs | 87 |
| 20 | owens | samuel | M | 26 | Anglican | Irish | Ontario | Farmers, general and nfs | 4 |
| 13 | owens | sarah | F | 26 | Anglican | Irish | Ontario | No Occupation Listed | 3 |
| 3 | owens | sarah | F | 33 | Anglican | Irish | Ontario | No Occupation Listed | 162 |
| 6 | owens | sarah | F | 5 | Anglican | Irish | Ontario | No Occupation Listed | 162 |
| 10 | owens | sarah | F | 21 | Anglican | Irish | Ontario | No Occupation Listed | 87 |
| 25 | owens | thomas | M | 24 | Anglican | Irish | Ontario | Farmers, general and nfs | 168 |
| 11 | owens | thomas | M | 19 | Anglican | Irish | Ontario | No Occupation Listed | 87 |
| 25 | owens | thomson | M | 1 | Presbyterian | Irish | Ontario | No Occupation Listed | 19 |
| 15 | owens | william | M | 23 | Anglican | Irish | Ontario | Farmers, general and nfs | 3 |
| 16 | owens | william | M | 70 | Anglican | Irish | Ireland | Farmers, general and nfs | 4 |
| 24 | owens | william | M | 4 | Presbyterian | Irish | Ontario | No Occupation Listed | 19 |
| 21 | owens | william | M | 5 | Anglican | Irish | Ontario | No Occupation Listed | 44 |