Residents of Euphrasia — Sub-district C, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 8 | obrien | james | M | 7 | Roman Catholic | Irish | Quebec | No Occupation Listed | 285 |
| 5 | obrien | john | M | 46 | Roman Catholic | Irish | Quebec | Farmers, general and nfs | 285 |
| 6 | obrien | sarah | F | 45 | Anglican | Irish | Quebec | No Occupation Listed | 285 |
| 7 | obrien | william | M | 11 | Roman Catholic | Irish | Quebec | No Occupation Listed | 285 |
| 2 | oney | john | M | 3 | Methodist | Italian | Ontario | No Occupation Listed | 149 |
| 3 | oney | martha | F | 1 | Methodist | Italian | Ontario | No Occupation Listed | 149 |
| 25 | oney | matilda | F | 7 | Methodist | Italian | Ontario | No Occupation Listed | 149 |
| 23 | oney | ralph | M | 38 | Methodist | Italian | Italy | Farmers, general and nfs | 149 |
| 1 | oney | sarah | F | 5 | Methodist | Italian | Ontario | No Occupation Listed | 149 |
| 24 | oney | susanna | F | 30 | Methodist | Irish | Ireland | No Occupation Listed | 149 |
| 16 | ormsby | andrew | M | 50 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 226 |
| 22 | ormsby | andrew | M | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 226 |
| 19 | ormsby | barbra | F | 20 | Roman Catholic | Irish | Ontario | No Occupation Listed | 226 |
| 20 | ormsby | daniel | M | 19 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 226 |
| 17 | ormsby | john | M | 24 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 226 |
| 18 | ormsby | mary | F | 22 | Roman Catholic | Irish | Ontario | No Occupation Listed | 226 |
| 21 | ormsby | thomas | M | 17 | Roman Catholic | Irish | Ontario | No Occupation Listed | 226 |
| 2 | orr | anna | F | 45 | Anglican | Irish | Ireland | No Occupation Listed | 19 |
| 4 | orr | ralph | M | 3 | Presbyterian | Irish | Ontario | No Occupation Listed | 19 |
| 1 | orr | robert | M | 60 | Presbyterian | Irish | Ireland | Dealer, merchant etc. (Wholesale & retail trade) | 19 |
| 3 | orr | robert | M | 6 | Presbyterian | Irish | Ontario | No Occupation Listed | 19 |
| 5 | orser | alberthie | F | 10 | Episcopal Methodist | Dutch | Quebec | No Occupation Listed | 90 |
| 7 | orser | alfred | M | 6 | Episcopal Methodist | Dutch | Quebec | No Occupation Listed | 90 |
| 2 | orser | andrew | M | 16 | Episcopal Methodist | Dutch | Quebec | No Occupation Listed | 90 |
| 22 | orser | anna | F | 42 | Episcopal Methodist | Scottish | Quebec | No Occupation Listed | 90 |
| 4 | orser | charles | M | 12 | Episcopal Methodist | Dutch | Quebec | No Occupation Listed | 90 |
| 9 | orser | elizabeth | F | 2 | Episcopal Methodist | Dutch | Quebec | No Occupation Listed | 90 |
| 24 | orser | euphema | F | 21 | Episcopal Methodist | Scottish | Quebec | Tailors and tailoresses | 90 |
| 6 | orser | hester | F | 27 | Episcopal Methodist | Irish | Quebec | No Occupation Listed | 81 |
| 3 | orser | james | M | 14 | Episcopal Methodist | Dutch | Quebec | No Occupation Listed | 90 |
| 23 | orser | matilda | F | 22 | Episcopal Methodist | Scottish | Quebec | No Occupation Listed | 90 |
| 8 | orser | nathan | M | 4 | Episcopal Methodist | Dutch | Quebec | No Occupation Listed | 90 |
| 21 | orser | samuel | M | 44 | Episcopal Methodist | Scottish | Quebec | Farmers, general and nfs | 90 |
| 6 | orser | samuel | M | 8 | Episcopal Methodist | Dutch | Quebec | No Occupation Listed | 90 |
| 5 | orser | william | M | 35 | Episcopal Methodist | Dutch | Quebec | Farmers, general and nfs | 81 |
| 25 | orser | william | M | 19 | Episcopal Methodist | Scottish | Quebec | Farmers, general and nfs | 90 |
| 19 | ortup | harriet | F | 46 | Anglican | English | England | No Occupation Listed | 221 |
| 20 | ortup | james | M | 18 | Anglican | English | Ontario | Farmers, general and nfs | 221 |
| 22 | ortup | mary | F | 14 | Anglican | English | Ontario | No Occupation Listed | 221 |
| 18 | ortup | thomas | M | 56 | Anglican | English | England | Farmers, general and nfs | 221 |
| 21 | ortup | william | M | 16 | Anglican | English | Ontario | Farmers, general and nfs | 221 |
| 23 | overland | almira | F | 29 | Anglican | Welsh | Ontario | No Occupation Listed | 244 |
| 1 | overland | anna | F | 2 | Anglican | English | Ontario | No Occupation Listed | 244 |
| 24 | overland | catherine | F | 6 | Anglican | English | Ontario | No Occupation Listed | 244 |
| 25 | overland | earnest | M | 4 | Anglican | English | Ontario | No Occupation Listed | 244 |
| 8 | overland | hannah | F | 21 | Presbyterian | English | Ontario | No Occupation Listed | 229 |
| 22 | overland | john | M | 38 | Anglican | English | Ontario | Farmers, general and nfs | 244 |
| 7 | overland | william | M | 29 | Presbyterian | English | Ontario | Farmers, general and nfs | 229 |
| 19 | owens | alfred | M | 11 | Methodist | English | Ontario | No Occupation Listed | 104 |
| 16 | owens | edward | M | 49 | Methodist | English | England | Farmers, general and nfs | 104 |
| 17 | owens | fannie | F | 43 | Methodist | English | England | No Occupation Listed | 104 |
| 18 | owens | mary | F | 13 | Methodist | English | Ontario | No Occupation Listed | 104 |
| 20 | owens | sarah | F | 8 | Methodist | English | Ontario | No Occupation Listed | 104 |