Residents of Farnham W-O — Sub-district J, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 7 | obrien | george | M | 0 | Roman Catholic | Irish | Quebec | No Occupation Listed | 75 |
| 3 | obrien | james | M | 29 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 75 |
| 6 | obrien | james | M | 3 | Roman Catholic | Irish | Quebec | No Occupation Listed | 75 |
| 5 | obrien | madina | F | 24 | Roman Catholic | French | Quebec | No Occupation Listed | 75 |
| 4 | obrien | marianne | F | 27 | Roman Catholic | Irish | Quebec | No Occupation Listed | 75 |
| 2 | obrien | thomas | M | 70 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 75 |