Residents of Logan — Sub-district A, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 10 | obrian | patrick | M | 45 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 73 |
| 11 | obrian | winnifred | F | 45 | Roman Catholic | Irish | Ireland | No Occupation Listed | 73 |
| 11 | oconnol | ann | F | 22 | Roman Catholic | Irish | Ontario | No Occupation Listed | 211 |
| 10 | oconnol | bridget | F | 23 | Roman Catholic | Irish | Ontario | No Occupation Listed | 211 |
| 7 | oconnol | jeffery | M | 60 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 211 |
| 8 | oconnol | johanna | F | 60 | Roman Catholic | Irish | Ireland | No Occupation Listed | 211 |
| 3 | odair | annie | F | 0 | Presbyterian | Irish | Ontario | No Occupation Listed | 103 |
| 2 | odair | marey | F | 2 | Presbyterian | Irish | Ontario | No Occupation Listed | 103 |
| 1 | odair | margeret | F | 23 | Presbyterian | Irish | Ontario | No Occupation Listed | 103 |
| 25 | odair | mathew | M | 29 | Presbyterian | Irish | Ontario | Farmers, general and nfs | 103 |
| 20 | olver | rebecca | F | 6 | Anglican | English | Ontario | No Occupation Listed | 15 |
| 18 | olver | richard | M | 49 | Anglican | English | England | Farmers, general and nfs | 15 |
| 19 | olver | sarah | F | 29 | Anglican | English | Ontario | No Occupation Listed | 15 |
| 2 | osborn | isaac | M | 25 | Wesleyan Methodist | German | Ontario | Farmers, general and nfs | 150 |
| 18 | osborn | margaret | F | 29 | Wesleyan Methodist | English | Ontario | No Occupation Listed | 148 |
| 19 | osborn | mary | F | 4 | Wesleyan Methodist | German | Ontario | No Occupation Listed | 148 |
| 3 | osborn | mary | F | 21 | Wesleyan Methodist | English | Ontario | No Occupation Listed | 150 |
| 17 | osborn | phillip | M | 29 | Wesleyan Methodist | German | Ontario | Farmers, general and nfs | 148 |