Residents of Elzevir & Grimsthorpe — Sub-district L, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 10 | oconner | cathine | F | 0 | Roman Catholic | French | Quebec | No Occupation Listed | 124 |
| 6 | oconner | cathrine | F | 31 | Roman Catholic | French | Quebec | No Occupation Listed | 124 |
| 8 | oconner | coreec | F | 5 | Roman Catholic | French | Quebec | No Occupation Listed | 124 |
| 9 | oconner | enevie | M | 3 | Roman Catholic | French | Quebec | No Occupation Listed | 124 |
| 5 | oconner | joseph | M | 39 | Roman Catholic | French | Quebec | Farmers, general and nfs | 124 |
| 7 | oconner | joseph | M | 8 | Roman Catholic | French | Quebec | No Occupation Listed | 124 |
| 22 | osborn | elizabeth | F | 30 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 5 |
| 23 | osborn | george | M | 8 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 5 |
| 21 | osborn | james | M | 36 | Episcopal Methodist | Irish | Ontario | Farmers, general and nfs | 5 |
| 24 | osborn | mary | F | 6 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 5 |
| 25 | osborn | samuel | M | 4 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 5 |
| 24 | osbourn | ira | M | 60 | Methodist | German | Ontario | Farmers, general and nfs | 10 |