Residents of Mill Point, Village — Sub-district D, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 9 | oconner | annie | F | 0 | Roman Catholic | Irish | Ontario | No Occupation Listed | 19 |
| 5 | oconner | ellen | F | 36 | Roman Catholic | Irish | Ontario | No Occupation Listed | 19 |
| 8 | oconner | freddie | M | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 19 |
| 6 | oconner | mary | F | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 19 |
| 4 | oconner | patrick | M | 42 | Roman Catholic | Irish | Ireland | Hotel Keepers and Managers | 19 |
| 7 | oconner | wm | M | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 19 |
| 15 | odonner | thos | M | 22 | Roman Catholic | Irish | Ireland | Seamen | 335 |
| 9 | ojay | david | M | 0 | Roman Catholic | French | Ontario | No Occupation Listed | 263 |
| 7 | ojay | delia | F | 7 | Roman Catholic | French | Ontario | No Occupation Listed | 263 |
| 5 | ojay | felra | M | 12 | Roman Catholic | French | Ontario | No Occupation Listed | 263 |
| 3 | ojay | francis | M | 36 | Roman Catholic | French | Quebec | Labourers nfs | 263 |
| 8 | ojay | francis | M | 3 | Roman Catholic | French | Ontario | No Occupation Listed | 263 |
| 4 | ojay | rosa | F | 33 | Roman Catholic | French | Ontario | No Occupation Listed | 263 |
| 6 | ojay | rosa | F | 10 | Roman Catholic | French | Ontario | No Occupation Listed | 263 |
| 24 | oliver | ben | M | 68 | Anglican | German | Ontario | No Occupation Listed | 154 |
| 12 | oliver | chas | M | 7 | Anglican | German | Ontario | No Occupation Listed | 142 |
| 11 | oliver | harriet | F | 29 | Episcopal Methodist | German | Ontario | No Occupation Listed | 142 |
| 13 | oliver | herb | M | 4 | Anglican | German | Ontario | No Occupation Listed | 142 |
| 25 | oliver | jane | F | 64 | Anglican | Irish | United States | No Occupation Listed | 154 |
| 1 | oliver | maggie | F | 30 | Anglican | German | Ontario | No Occupation Listed | 154 |
| 2 | oliver | marshal | M | 25 | Anglican | German | Ontario | Dealer, merchant etc. (Wholesale & retail trade) | 154 |
| 14 | oliver | shela | F | 1 | Anglican | German | Ontario | No Occupation Listed | 142 |
| 10 | oliver | william | M | 46 | Anglican | German | Ontario | Joiners | 142 |
| 12 | olliphant | susanah | F | 71 | Methodist | German | Ontario | No Occupation Listed | 328 |
| 7 | oray | charles | M | 28 | Roman Catholic | Irish | Ontario | Labourers nfs | 179 |
| 8 | oray | margaret | F | 27 | Roman Catholic | Irish | Ontario | No Occupation Listed | 179 |