Residents of Winchester — Sub-district F, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 25 | obrien | ann | F | 43 | Roman Catholic | Irish | Ireland | No Occupation Listed | 155 |
| 1 | obrien | catherine | F | 20 | Roman Catholic | Irish | Ontario | No Occupation Listed | 155 |
| 3 | obrien | john | M | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 155 |
| 4 | obrien | julia | F | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 155 |
| 2 | obrien | rose | F | 18 | Roman Catholic | Irish | Ontario | No Occupation Listed | 155 |
| 2 | obrnie | mary | F | 76 | Presbyterian | German | Ontario | No Occupation Listed | 219 |
| 22 | ogden | almadia | F | 21 | Methodist | German | Ontario | No Occupation Listed | 134 |
| 19 | ogden | carloine | F | 50 | Methodist | German | Ontario | No Occupation Listed | 134 |
| 18 | ogden | chaney | M | 52 | Methodist | German | Ontario | Farmers, general and nfs | 134 |
| 21 | ogden | colin | M | 23 | Methodist | German | Ontario | Farmers, general and nfs | 134 |
| 24 | ogden | dexter | M | 15 | Methodist | German | Ontario | No Occupation Listed | 134 |
| 20 | ogden | nelson | M | 27 | Methodist | German | Ontario | Farmers, general and nfs | 134 |
| 23 | ogden | roxy | F | 19 | Methodist | German | Ontario | No Occupation Listed | 134 |
| 15 | oneil | edward | M | 31 | | Irish | Ontario | Mechanics | 304 |
| 19 | orton | george | M | 8 | Presbyterian | English | Ontario | No Occupation Listed | 222 |
| 20 | orton | hetlena | F | 6 | Presbyterian | English | Ontario | No Occupation Listed | 222 |
| 21 | orton | irvine | M | 2 | Presbyterian | English | Ontario | No Occupation Listed | 222 |
| 16 | orton | mary | F | 33 | Presbyterian | Irish | Quebec | No Occupation Listed | 222 |
| 22 | orton | maud | F | 0 | Presbyterian | English | Ontario | No Occupation Listed | 222 |
| 18 | orton | minnie | F | 10 | Presbyterian | English | Ontario | No Occupation Listed | 222 |
| 15 | orton | oliver | M | 37 | Presbyterian | English | Ontario | Coach, carriage, cart and wagon makers | 222 |
| 17 | orton | samuel | M | 12 | Presbyterian | English | Ontario | No Occupation Listed | 222 |
| 3 | ouderkirk | catherine | F | 19 | Episcopal Methodist | German | Ontario | No Occupation Listed | 173 |
| 25 | ouderkirk | eli | M | 55 | Episcopal Methodist | German | Ontario | Farmers, general and nfs | 173 |
| 4 | ouderkirk | johnston | M | 1 | Episcopal Methodist | German | Ontario | No Occupation Listed | 173 |
| 1 | ouderkirk | mary | F | 44 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 173 |
| 2 | ouderkirk | william | M | 22 | Episcopal Methodist | German | Ontario | No Occupation Listed | 173 |
| 18 | outam | adia | F | 15 | Methodist | German | Ontario | No Occupation Listed | 72 |
| 19 | outam | george | F | 11 | Methodist | German | Ontario | No Occupation Listed | 72 |
| 17 | outam | margaret | F | 31 | Methodist | French | Ontario | No Occupation Listed | 72 |
| 20 | outam | mary | F | 1 | Methodist | German | Ontario | No Occupation Listed | 72 |
| 16 | outam | warih | M | 36 | Methodist | German | Ontario | Labourers nfs | 72 |