Residents of Hungerford — Sub-district C, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 10 | obrien | mary | F | 58 | Roman Catholic | Irish | Ireland | No Occupation Listed | 159 |
| 11 | obrien | william | M | 30 | Roman Catholic | Irish | Ontario | Teachers (unspecified) | 159 |
| 8 | obrine | elizabeth | F | 33 | Roman Catholic | Irish | Ireland | No Occupation Listed | 149 |
| 12 | obrine | hannah | F | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 149 |
| 11 | obrine | margaret | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 149 |
| 17 | obrine | martin | M | 44 | Roman Catholic | Irish | Ireland | Labourers nfs | 44 |
| 10 | obrine | petter | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 149 |
| 7 | obrine | william | M | 34 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 149 |
| 9 | obrine | william | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 149 |
| 7 | ocoin | agness | F | 2 | Roman Catholic | French | Ontario | No Occupation Listed | 136 |
| 8 | ocoin | baptist | M | 2 | Roman Catholic | French | Ontario | No Occupation Listed | 139 |
| 10 | ocoin | catherine | F | 37 | Roman Catholic | French | Quebec | No Occupation Listed | 140 |
| 14 | ocoin | catherine | F | 0 | Roman Catholic | French | Ontario | No Occupation Listed | 140 |
| 12 | ocoin | clarise | F | 5 | Roman Catholic | French | Ontario | No Occupation Listed | 140 |
| 6 | ocoin | delemow | F | 6 | Roman Catholic | French | Ontario | No Occupation Listed | 139 |
| 2 | ocoin | delilah | F | 29 | Roman Catholic | French | Quebec | No Occupation Listed | 139 |
| 5 | ocoin | delilah | F | 8 | Roman Catholic | French | Ontario | No Occupation Listed | 139 |
| 1 | ocoin | felix | M | 34 | Roman Catholic | French | Quebec | Farmers, general and nfs | 139 |
| 4 | ocoin | felix | M | 9 | Roman Catholic | French | Ontario | No Occupation Listed | 139 |
| 3 | ocoin | forah | M | 12 | Roman Catholic | French | Ontario | No Occupation Listed | 139 |
| 9 | ocoin | joseph | M | 35 | Roman Catholic | French | Quebec | Farmers, general and nfs | 140 |
| 11 | ocoin | joseph | M | 8 | Roman Catholic | French | Ontario | No Occupation Listed | 140 |
| 3 | ocoin | levia | M | 28 | Roman Catholic | French | Quebec | Farmers, general and nfs | 136 |
| 6 | ocoin | levia | M | 4 | Roman Catholic | French | Ontario | No Occupation Listed | 136 |
| 7 | ocoin | levia | M | 4 | Roman Catholic | French | Ontario | No Occupation Listed | 139 |
| 4 | ocoin | mary | F | 28 | Roman Catholic | French | Quebec | No Occupation Listed | 136 |
| 5 | ocoin | mary | F | 9 | Roman Catholic | French | Ontario | No Occupation Listed | 136 |
| 13 | ocoin | xevier | M | 3 | Roman Catholic | French | Ontario | No Occupation Listed | 140 |
| 9 | oliver | andrew | M | 23 | Episcopal Methodist | Dutch | Ontario | Farmers, general and nfs | 183 |
| 11 | oliver | benjimon | M | 17 | Episcopal Methodist | Dutch | Ontario | No Occupation Listed | 183 |
| 8 | oliver | catherine | F | 46 | Episcopal Methodist | Dutch | Ontario | No Occupation Listed | 183 |
| 16 | oliver | charles | M | 32 | Episcopal Methodist | Dutch | Ontario | Farmers, general and nfs | 184 |
| 14 | oliver | cornelous | M | 71 | Episcopal Methodist | Dutch | Ontario | Farmers, general and nfs | 184 |
| 9 | oliver | elettear | F | 35 | Methodist | Welsh | Ontario | No Occupation Listed | 24 |
| 15 | oliver | elizabeth | F | 71 | Episcopal Methodist | Dutch | Ontario | No Occupation Listed | 184 |
| 10 | oliver | henney | F | 12 | Methodist | English | Ontario | No Occupation Listed | 24 |
| 13 | oliver | irinda | F | 3 | Episcopal Methodist | Dutch | Ontario | No Occupation Listed | 183 |
| 12 | oliver | james | M | 7 | Episcopal Methodist | Dutch | Ontario | No Occupation Listed | 183 |
| 10 | oliver | matilda | F | 20 | Episcopal Methodist | Dutch | Ontario | No Occupation Listed | 183 |
| 11 | oliver | thomas | M | 9 | Methodist | English | Ontario | No Occupation Listed | 24 |
| 12 | oliver | willace | M | 6 | Methodist | English | Ontario | No Occupation Listed | 24 |
| 8 | oliver | william | M | 39 | Methodist | English | England | Labourers nfs | 24 |
| 7 | oliver | william | M | 48 | Episcopal Methodist | Dutch | Ontario | Farmers, general and nfs | 183 |
| 9 | olliver | amab | M | 16 | Episcopal Methodist | Dutch | Ontario | Farmers, general and nfs | 226 |
| 8 | olliver | charles | M | 18 | Episcopal Methodist | Dutch | Ontario | Farmers, general and nfs | 226 |
| 12 | olliver | cornelous | M | 2 | Episcopal Methodist | Dutch | Ontario | No Occupation Listed | 226 |
| 11 | olliver | emma | F | 5 | Episcopal Methodist | Dutch | Ontario | No Occupation Listed | 226 |
| 11 | olliver | francis | M | 13 | Methodist | Irish | Ontario | No Occupation Listed | 233 |
| 5 | olliver | george | M | 52 | Episcopal Methodist | Dutch | Ontario | Farmers, general and nfs | 226 |
| 10 | olliver | george | M | 8 | Episcopal Methodist | Dutch | Ontario | No Occupation Listed | 226 |
| 7 | olliver | henry | M | 23 | Episcopal Methodist | Dutch | Ontario | Farmers, general and nfs | 226 |
| 6 | olliver | julia | F | 42 | Episcopal Methodist | French | Ontario | No Occupation Listed | 226 |
| 12 | olliver | margret | F | 11 | Methodist | Irish | Ontario | No Occupation Listed | 233 |
| 8 | olliver | robert | M | 39 | Methodist | Irish | Ontario | Farmers, general and nfs | 233 |
| 10 | olliver | robert | M | 15 | Methodist | Irish | Ontario | No Occupation Listed | 233 |
| 9 | olliver | sarah | F | 37 | Methodist | Irish | Ireland | No Occupation Listed | 233 |
| 20 | oreilley | ann | F | 67 | Roman Catholic | Irish | Ireland | No Occupation Listed | 128 |
| 6 | oreilley | bridget | F | 46 | Roman Catholic | Irish | Ireland | No Occupation Listed | 130 |
| 9 | oreilley | bridget | F | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 130 |
| 24 | oreilley | david | M | 0 | Roman Catholic | Irish | Ontario | No Occupation Listed | 128 |
| 22 | oreilley | elizabeth | F | 30 | Roman Catholic | Irish | Ontario | No Occupation Listed | 128 |
| 19 | oreilley | michael | M | 70 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 128 |
| 23 | oreilley | michael | M | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 128 |
| 8 | oreilley | michael | M | 18 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 130 |
| 10 | oreilley | patrick | M | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 130 |
| 7 | oreilley | roseann | F | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 130 |
| 5 | oreilley | timothy | M | 46 | Roman Catholic | Irish | England | Farmers, general and nfs | 130 |
| 12 | oreilley | timothy | M | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 130 |
| 21 | oreilley | william | M | 32 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 128 |
| 11 | oreilley | william | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 130 |
| 2 | orr | george | M | 14 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 31 |
| 25 | orr | isabella | F | 53 | Episcopal Methodist | English | Ontario | No Occupation Listed | 31 |
| 1 | orr | isabella | F | 17 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 31 |
| 24 | orr | william | M | 63 | Episcopal Methodist | Irish | Ireland | Farmers, general and nfs | 31 |
| 21 | osborne | nehemah | M | 57 | Methodist | German | Ontario | Labourers nfs | 26 |
| 22 | ostrim | james | M | 28 | Methodist | English | Ontario | Farmers, general and nfs | 136 |
| 1 | ostrim | john | M | 25 | Methodist | English | Ontario | Farmers, general and nfs | 136 |
| 25 | ostrim | mary | F | 39 | Methodist | English | — | No Occupation Listed | 136 |
| 24 | ostrim | nancy | F | 59 | Methodist | English | Ontario | No Occupation Listed | 136 |
| 23 | ostrim | stephen | M | 72 | Methodist | English | Ontario | Farmers, general and nfs | 136 |
| 18 | out_aters | carrie | F | 5 | Methodist | German | Ontario | No Occupation Listed | 204 |
| 16 | out_aters | hugh | M | 30 | Methodist | German | Ontario | river drivers | 204 |
| 14 | out_aters | lewis | M | 70 | Quaker/Society of Friends | German | Ontario | Farmers, general and nfs | 204 |
| 15 | out_aters | mary | F | 50 | Quaker/Society of Friends | Irish | Ontario | No Occupation Listed | 204 |
| 19 | out_aters | minnie | F | 3 | Methodist | German | Ontario | No Occupation Listed | 204 |
| 17 | out_ates | elizabeth | F | 27 | Methodist | Irish | Ontario | No Occupation Listed | 204 |
| 2 | owin | sineveur | M | 67 | Roman Catholic | French | Quebec | Farmers, general and nfs | 118 |
| 1 | owin | terrasa | F | 70 | Roman Catholic | French | Quebec | No Occupation Listed | 118 |
| 25 | owin | xavier | M | 69 | Roman Catholic | French | Quebec | Farmers, general and nfs | 118 |