Residents of Grenville — Sub-district E, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 17 | obrien | maffie | F | 5 | Presbyterian | Irish | Quebec | No Occupation Listed | 254 |
| 15 | obrien | mitcheal | M | 40 | Presbyterian | Irish | Quebec | Farmers, general and nfs | 254 |
| 16 | obrien | nancy | F | 37 | Presbyterian | Irish | Quebec | No Occupation Listed | 254 |
| 18 | obrien | samuel | M | 3 | Presbyterian | Irish | Quebec | No Occupation Listed | 254 |
| 18 | ogilvie | adeline | F | 17 | Anglican | English | Quebec | No Occupation Listed | 221 |
| 23 | ogilvie | alexander | M | 18 | Presbyterian | Scottish | Quebec | No Occupation Listed | 82 |
| 24 | ogilvie | alice | F | 17 | Presbyterian | Scottish | Quebec | No Occupation Listed | 82 |
| 21 | ogilvie | david | M | 46 | Presbyterian | Scottish | Quebec | Farmers, general and nfs | 82 |
| 21 | ogilvie | dolly | F | 11 | Anglican | English | Quebec | No Occupation Listed | 221 |
| 13 | ogilvie | emily | F | 27 | Anglican | English | Quebec | Servants nfs | 221 |
| 15 | ogilvie | georgina | F | 22 | Anglican | English | Quebec | Servants nfs | 221 |
| 17 | ogilvie | harriet | F | 18 | Anglican | English | Quebec | No Occupation Listed | 221 |
| 25 | ogilvie | james | M | 1 | Presbyterian | Scottish | Quebec | No Occupation Listed | 82 |
| 11 | ogilvie | john | M | 53 | Anglican | English | Quebec | Farmers, general and nfs | 221 |
| 16 | ogilvie | john | M | 20 | Anglican | English | Quebec | Farmers, general and nfs | 221 |
| 12 | ogilvie | mary | F | 41 | Anglican | English | Quebec | No Occupation Listed | 221 |
| 14 | ogilvie | mary | F | 25 | Anglican | English | Quebec | Servants nfs | 221 |
| 20 | ogilvie | prudence | F | 13 | Anglican | English | Quebec | No Occupation Listed | 221 |
| 19 | ogilvie | sarah | F | 15 | Anglican | English | Quebec | No Occupation Listed | 221 |
| 1 | ogilvie | thomas | M | 13 | Presbyterian | Scottish | Quebec | No Occupation Listed | 82 |
| 23 | ogilvie | ward | M | 2 | Anglican | English | Quebec | No Occupation Listed | 221 |
| 22 | ogilvie | william | M | 19 | Presbyterian | Scottish | Quebec | No Occupation Listed | 82 |
| 22 | ogilvie | william | M | 3 | Anglican | English | Quebec | No Occupation Listed | 221 |
| 18 | oriley | alice | F | 2 | Roman Catholic | Irish | Quebec | No Occupation Listed | 315 |
| 16 | oriley | catherine | F | 40 | Roman Catholic | Irish | Ireland | Labourers nfs | 315 |
| 17 | oriley | kate | F | 9 | Roman Catholic | Irish | Quebec | No Occupation Listed | 315 |
| 15 | oriley | mickael | M | 40 | Roman Catholic | Irish | Ireland | Labourers nfs | 315 |