Residents of Howard — Sub-district A, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 12 | obrine | cate | F | 5 | Anglican | Irish | Ontario | No Occupation Listed | 83 |
| 9 | obrine | john | M | 38 | Anglican | Irish | England | Boot and shoemakers and repairers | 83 |
| 10 | obrine | margret | F | 31 | Anglican | Irish | Ireland | No Occupation Listed | 83 |
| 11 | obrine | margret | F | 6 | Anglican | Irish | Ireland | No Occupation Listed | 83 |
| 13 | obrine | selenia | F | 0 | Anglican | Irish | Ontario | No Occupation Listed | 83 |
| 8 | oconner | briget | F | 61 | Roman Catholic | Irish | Ireland | No Occupation Listed | 58 |
| 12 | oconner | catherin | F | 20 | Roman Catholic | Irish | Ontario | No Occupation Listed | 58 |
| 14 | oconner | catherin | F | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 58 |
| 7 | oconner | james | M | 67 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 58 |
| 9 | oconner | james | M | 27 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 58 |
| 13 | oconner | maria | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 58 |
| 10 | oconner | michel | M | 25 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 58 |
| 11 | oconner | richard | M | 23 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 58 |
| 8 | oconnor | herbert | M | 36 | Anglican | Irish | England | Farmers, general and nfs | 195 |
| 9 | oconnor | mary | F | 44 | Anglican | English | Ontario | No Occupation Listed | 195 |
| 16 | osterhout | john | M | 32 | Methodist | German | Ontario | Farmers, general and nfs | 67 |
| 17 | osterhout | mary | F | 26 | Methodist | German | Ontario | No Occupation Listed | 67 |
| 19 | osterhout | peter | M | 2 | Methodist | German | Ontario | No Occupation Listed | 67 |
| 20 | osterhout | samuil | M | 0 | Methodist | German | Ontario | No Occupation Listed | 67 |
| 18 | osterhout | william | M | 3 | Methodist | German | Ontario | No Occupation Listed | 67 |
| 4 | oxley | ann | F | 68 | | German | Ontario | No Occupation Listed | 292 |
| 11 | oxley | anna | F | 26 | Baptist | English | England | No Occupation Listed | 130 |
| 5 | oxley | eliza | F | 32 | | German | Ontario | No Occupation Listed | 292 |
| 10 | oxley | george | M | 24 | Baptist | English | England | river drivers | 130 |
| 13 | oxley | jennie | F | 1 | Baptist | English | Ontario | No Occupation Listed | 130 |
| 12 | oxley | mary | F | 3 | Baptist | English | England | No Occupation Listed | 130 |