Residents of Port Dalhousie, VL — Sub-district G, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 11 | odonell | isabella | F | 11 | Anglican | English | England | No Occupation Listed | 195 |
| 5 | odonnell | isabella | F | 3 | Roman Catholic | Irish | Ontario | No Occupation Listed | 194 |
| 14 | odonnell | john | M | 35 | Roman Catholic | Irish | Ontario | Ships Masters and captains (Sea or Inland Waterways) | 158 |
| 3 | odonnell | john | M | 6 | Roman Catholic | Irish | Ontario | No Occupation Listed | 194 |
| 13 | odonnell | mary | F | 62 | Roman Catholic | Irish | Ireland | No Occupation Listed | 158 |
| 4 | odonnell | mary | F | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 194 |
| 1 | odonnell | thomas | M | 38 | Roman Catholic | Irish | Ontario | Ships Masters and captains (Sea or Inland Waterways) | 194 |
| 2 | onell | isabella | F | 29 | Roman Catholic | Irish | Ireland | No Occupation Listed | 194 |
| 1 | onesk | alexander | M | 9 | Episcopal | German | Ontario | No Occupation Listed | 126 |
| 4 | onesk | alice | F | 0 | Episcopal | German | Ontario | No Occupation Listed | 126 |
| 25 | onesk | edward | M | 11 | Episcopal | German | Ontario | No Occupation Listed | 126 |
| 24 | onesk | mary | F | 31 | Episcopal | English | United States | No Occupation Listed | 126 |
| 2 | onesk | mary | F | 7 | Episcopal | German | Ontario | No Occupation Listed | 126 |
| 23 | onesk | phillip | M | 47 | Presbyterian | German | Germany | Barbers | 126 |
| 3 | onesk | thomas | M | 3 | Episcopal | German | Ontario | No Occupation Listed | 126 |