Residents of Camden — Sub-district C, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 4 | oconnor | thomas | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 487 |
| 6 | oconnors | andrew | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 320 |
| 2 | oconnors | bridget | F | 42 | Roman Catholic | Irish | Ireland | No Occupation Listed | 487 |
| 16 | oconnors | briget | F | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 398 |
| 3 | oconnors | cathrin | F | 23 | Roman Catholic | Irish | Ontario | No Occupation Listed | 320 |
| 22 | oconnors | cathrin | F | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 398 |
| 6 | oconnors | cathron | F | 9 | Roman Catholic | Irish | Ontario | No Occupation Listed | 487 |
| 21 | oconnors | edwerd | M | 3 | Roman Catholic | Irish | Ontario | No Occupation Listed | 398 |
| 3 | oconnors | edwerd | M | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 487 |
| 17 | oconnors | henry | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 398 |
| 14 | oconnors | john | M | 40 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 398 |
| 19 | oconnors | john | M | 8 | Roman Catholic | Irish | Ontario | No Occupation Listed | 398 |
| 20 | oconnors | maggie | F | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 398 |
| 17 | oconnors | margret | F | 24 | Roman Catholic | Irish | Ontario | No Occupation Listed | 210 |
| 18 | oconnors | margret | F | 58 | Roman Catholic | Irish | Ireland | No Occupation Listed | 210 |
| 5 | oconnors | margret | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 487 |
| 5 | oconnors | mary | F | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 320 |
| 15 | oconnors | mary | F | 39 | Roman Catholic | Irish | Ireland | No Occupation Listed | 398 |
| 18 | oconnors | mary | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 398 |
| 1 | oconnors | robert | M | 42 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 487 |
| 2 | oconnors | sarah | F | 44 | Roman Catholic | Irish | Ireland | No Occupation Listed | 320 |
| 7 | oconnors | sarah | F | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 487 |
| 16 | oconnors | thomas | M | 22 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 210 |
| 4 | oconnors | thomas | M | 21 | Roman Catholic | Irish | Ontario | No Occupation Listed | 320 |
| 7 | oconnors | tressie | F | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 320 |
| 1 | oconnors | william | M | 40 | Roman Catholic | Irish | Ireland | Tailors and tailoresses | 320 |
| 8 | odea | anna | F | 25 | Roman Catholic | Irish | Ontario | No Occupation Listed | 253 |
| 20 | odea | cathrine | F | 28 | Roman Catholic | Irish | Ontario | No Occupation Listed | 58 |
| 18 | odea | cathrn | F | 74 | Roman Catholic | Irish | Ireland | No Occupation Listed | 58 |
| 10 | odea | ellon | F | 21 | Roman Catholic | Irish | Ontario | No Occupation Listed | 253 |
| 5 | odea | frences | F | 54 | Roman Catholic | Irish | Ireland | No Occupation Listed | 253 |
| 6 | odea | frencis | M | 29 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 253 |
| 13 | odea | hannah | F | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 253 |
| 4 | odea | john | M | 65 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 253 |
| 12 | odea | john | M | 14 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 253 |
| 19 | odea | mary | F | 47 | Roman Catholic | Irish | Ireland | No Occupation Listed | 58 |
| 11 | odea | mary | F | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 253 |
| 9 | odea | michael | M | 23 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 253 |
| 17 | odea | patrick | M | 82 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 58 |
| 7 | odea | william | M | 27 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 253 |
| 15 | odonal | anna | F | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 186 |
| 11 | odonal | daniel | M | 34 | Roman Catholic | Irish | Ontario | river drivers | 186 |
| 12 | odonal | elizebeth | F | 28 | Roman Catholic | Irish | Ontario | No Occupation Listed | 186 |
| 13 | odonal | mary | F | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 186 |
| 14 | odonal | nathaniel | M | 3 | Roman Catholic | Irish | Ontario | No Occupation Listed | 186 |
| 25 | ohare | arthur | M | 9 | Presbyterian | English | Scotland | No Occupation Listed | 196 |
| 21 | ohare | isabella | F | 33 | Presbyterian | Scottish | Scotland | No Occupation Listed | 196 |
| 20 | ohare | james | M | 42 | Presbyterian | English | England | Papermill machine operators and paper makers | 196 |
| 24 | ohare | james | M | 11 | Presbyterian | English | Scotland | No Occupation Listed | 196 |
| 1 | ohare | jane | F | 3 | Presbyterian | English | Ontario | No Occupation Listed | 196 |
| 23 | ohare | john | M | 13 | Presbyterian | English | Scotland | No Occupation Listed | 196 |
| 22 | ohare | mary | F | 15 | Presbyterian | English | Scotland | No Occupation Listed | 196 |
| 2 | ohare | william | M | 1 | Presbyterian | English | Ontario | No Occupation Listed | 196 |
| 2 | oid | henry | M | 14 | Methodist | English | England | No Occupation Listed | 150 |
| 25 | oid | jane | F | 19 | Methodist | English | England | No Occupation Listed | 150 |
| 24 | oid | margaret | F | 22 | Methodist | English | England | Papermill machine operators and paper makers | 150 |
| 23 | oid | thomas | M | 49 | Anglican | English | England | Ship and boat builder nes (incl. boatbuilder) | 150 |
| 1 | oid | william | M | 17 | Methodist | English | England | Blacksmiths | 150 |
| 10 | oloughlin | bernard | M | 30 | Anglican | Irish | Ireland | Manufacturers and sales agents | 44 |
| 9 | oloughlin | catherine | F | 52 | Anglican | Irish | Ireland | No Occupation Listed | 44 |
| 8 | oloughlin | michael | M | 49 | Anglican | Irish | Ireland | Farmers, general and nfs | 44 |
| 5 | olvir | adline | F | 6 | Methodist | French | Ontario | No Occupation Listed | 411 |
| 4 | olvir | amma | F | 8 | Methodist | French | Ontario | No Occupation Listed | 411 |
| 1 | olvir | christepher | M | 38 | Methodist | French | Ontario | river drivers | 411 |
| 3 | olvir | jain | F | 10 | Methodist | French | Ontario | No Occupation Listed | 411 |
| 2 | olvir | mary | F | 38 | Methodist | French | Ontario | No Occupation Listed | 411 |
| 6 | olvir | mary | F | 4 | Methodist | French | Ontario | No Occupation Listed | 411 |
| 7 | olvir | william | M | 2 | Methodist | French | Ontario | No Occupation Listed | 411 |
| 15 | omarrah | johannah | F | 20 | Roman Catholic | Irish | Ontario | No Occupation Listed | 336 |
| 12 | omarrah | mary | F | 55 | Roman Catholic | Irish | Ireland | No Occupation Listed | 336 |
| 14 | omarrah | mary | F | 22 | Roman Catholic | Irish | Ontario | No Occupation Listed | 336 |
| 11 | omarrah | michael | M | 68 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 336 |
| 17 | omarrah | michael | M | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 336 |
| 16 | omarrah | nancy | F | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 336 |
| 13 | omarrah | patrick | M | 27 | Roman Catholic | Irish | Ontario | No Occupation Listed | 336 |
| 1 | oneill | ann | F | 24 | Roman Catholic | Irish | Ontario | No Occupation Listed | 252 |
| 3 | oneill | cathrine | F | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 252 |
| 25 | oneill | jain | F | 72 | Roman Catholic | Irish | Ireland | No Occupation Listed | 206 |
| 25 | oneill | john | M | 28 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 252 |
| 24 | oneill | patrick | M | 73 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 206 |
| 2 | oneill | teresa | F | 22 | Roman Catholic | Irish | Ontario | No Occupation Listed | 252 |
| 24 | oneill | thomas | M | 60 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 252 |
| 11 | orsban | esther | F | 10 | Methodist | Irish | Ontario | No Occupation Listed | 490 |
| 14 | orsban | mary | F | 17 | Methodist | Irish | Ontario | No Occupation Listed | 490 |
| 13 | orsban | rebecca | F | 4 | Methodist | Irish | Ontario | No Occupation Listed | 490 |
| 12 | orsban | sarah | F | 7 | Methodist | Irish | Ontario | No Occupation Listed | 490 |