Residents of Penetanguishene, T-V — Sub-district I, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 23 | odonnell | eliza | F | 54 | Anglican | Irish | Ontario | No Occupation Listed | 202 |
| 1 | odonnell | heerrietta | F | 19 | Anglican | Irish | Ontario | No Occupation Listed | 202 |
| 22 | odonnell | john | M | 34 | Anglican | Irish | Ontario | Seamen | 202 |
| 24 | odonnell | mary | F | 32 | Anglican | Irish | Ontario | No Occupation Listed | 202 |
| 25 | odonnell | william | M | 30 | Anglican | Irish | Ontario | No Occupation Listed | 202 |
| 13 | osburn | horace | M | 66 | Methodist | English | United States | No Occupation Listed | 96 |
| 14 | osburn | mariette | F | 63 | Methodist | English | United States | No Occupation Listed | 96 |