Residents of Louth — Sub-district C, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 20 | obrien | daniel | M | 27 | Roman Catholic | Irish | Ontario | No Occupation Listed | 37 |
| 4 | obrien | james | M | 25 | Roman Catholic | Irish | Ontario | No Occupation Listed | 30 |
| 5 | ohara | bridget | F | 83 | Roman Catholic | Irish | Ontario | No Occupation Listed | 44 |
| 18 | oliver | jessie | F | 13 | Anglican | Scottish | Ontario | No Occupation Listed | 76 |
| 17 | oliver | malvina | F | 37 | Anglican | English | Ontario | No Occupation Listed | 76 |
| 16 | oliver | william | M | 51 | Presbyterian | Scottish | Scotland | Farmers, general and nfs | 76 |
| 19 | oliver | william | M | 8 | Anglican | Scottish | Ontario | No Occupation Listed | 76 |
| 24 | orton | elizabeth | F | 15 | Methodist | German | United States | No Occupation Listed | 55 |
| 20 | osterhout | mary | F | 70 | Methodist | German | Ontario | No Occupation Listed | 125 |
| 22 | overholt | abraham | M | 58 | Disciple of Christ | German | Ontario | Labourers nfs | 35 |
| 26 | overholt | adda | F | 17 | Disciple of Christ | German | Ontario | No Occupation Listed | 35 |
| 13 | overholt | albertha | F | 3 | Disciple of Christ | German | Ontario | No Occupation Listed | 68 |
| 3 | overholt | alma | F | 31 | Mennonite | German | Ontario | No Occupation Listed | 192 |
| 2 | overholt | ann | F | 52 | Disciple of Christ | English | Ontario | No Occupation Listed | 109 |
| 1 | overholt | ann | F | 37 | Methodist | German | Ontario | No Occupation Listed | 206 |
| 23 | overholt | anna | F | 55 | Disciple of Christ | German | Ontario | No Occupation Listed | 35 |
| 14 | overholt | anna | F | 73 | Methodist | German | Ontario | No Occupation Listed | 152 |
| 5 | overholt | archie | M | 2 | Methodist | German | Ontario | No Occupation Listed | 151 |
| 4 | overholt | cora | F | 1 | Mennonite | German | Ontario | No Occupation Listed | 192 |
| 22 | overholt | cornelia | F | 20 | Methodist | German | Ontario | No Occupation Listed | 191 |
| 2 | overholt | cortland | M | 11 | Methodist | German | Ontario | No Occupation Listed | 206 |
| 23 | overholt | daniel | M | 25 | Mennonite | German | Ontario | Farmers, general and nfs | 205 |
| 25 | overholt | david | M | 15 | Mennonite | German | Ontario | Farmers, general and nfs | 191 |
| 14 | overholt | edith | F | 0 | Disciple of Christ | German | Ontario | No Occupation Listed | 68 |
| 16 | overholt | edith | F | 0 | Mennonite | German | Ontario | No Occupation Listed | 112 |
| 15 | overholt | egbert | M | 0 | Disciple of Christ | German | Ontario | No Occupation Listed | 68 |
| 4 | overholt | elizabeth | F | 39 | Methodist | German | Ontario | No Occupation Listed | 151 |
| 24 | overholt | elizabeth | F | 46 | Methodist | English | Ontario | No Occupation Listed | 69 |
| 25 | overholt | ella | F | 21 | Disciple of Christ | German | Ontario | No Occupation Listed | 35 |
| 8 | overholt | ella | F | 21 | Methodist | German | Ontario | No Occupation Listed | 152 |
| 1 | overholt | evalina | F | 6 | Disciple of Christ | German | Ontario | No Occupation Listed | 35 |
| 23 | overholt | francis | M | 0 | Methodist | German | Ontario | No Occupation Listed | 191 |
| 1 | overholt | francis | M | 21 | Methodist | German | Ontario | Farmers, general and nfs | 69 |
| 14 | overholt | freeman | M | 31 | Mennonite | German | Ontario | Farmers, general and nfs | 112 |
| 25 | overholt | gabriel | M | 38 | Methodist | German | Ontario | Farmers, general and nfs | 206 |
| 20 | overholt | hannah | F | 49 | Mennonite | German | Ontario | No Occupation Listed | 191 |
| 21 | overholt | henry | M | 26 | Mennonite | German | Ontario | Farmers, general and nfs | 191 |
| 3 | overholt | isaac | M | 21 | Disciple of Christ | German | Ontario | Labourers nfs | 109 |
| 19 | overholt | jacob | M | 57 | Mennonite | German | Ontario | Farmers, general and nfs | 191 |
| 2 | overholt | jessie | F | 19 | | German | Ontario | No Occupation Listed | 69 |
| 24 | overholt | john | M | 25 | Disciple of Christ | German | Ontario | No Occupation Listed | 35 |
| 11 | overholt | john | M | 15 | Methodist | German | Ontario | Labourers nfs | 152 |
| 4 | overholt | joseph | M | 14 | Disciple of Christ | German | Ontario | No Occupation Listed | 109 |
| 12 | overholt | joseph | M | 11 | Methodist | German | Ontario | No Occupation Listed | 152 |
| 25 | overholt | joseph | M | 24 | | German | Ontario | No Occupation Listed | 69 |
| 3 | overholt | loyd | M | 18 | | German | Ontario | Farmers, general and nfs | 69 |
| 3 | overholt | lucetta | F | 7 | Methodist | German | Ontario | No Occupation Listed | 206 |
| 11 | overholt | maggie | F | 8 | Disciple of Christ | German | Ontario | No Occupation Listed | 68 |
| 10 | overholt | mariah | F | 31 | Disciple of Christ | German | Ontario | No Occupation Listed | 68 |
| 17 | overholt | mark | M | 75 | Disciple of Christ | German | Ontario | No Occupation Listed | 20 |
| 7 | overholt | martha | F | 44 | Methodist | German | Ontario | No Occupation Listed | 152 |
| 5 | overholt | mary | F | 16 | Disciple of Christ | German | Ontario | No Occupation Listed | 109 |
| 15 | overholt | mary | F | 28 | Mennonite | German | Ontario | No Occupation Listed | 112 |
| 18 | overholt | mary | F | 17 | Methodist | German | Ontario | No Occupation Listed | 112 |
| 10 | overholt | mary | F | 17 | Methodist | German | Ontario | No Occupation Listed | 152 |
| 9 | overholt | minerva | F | 19 | Methodist | German | Ontario | No Occupation Listed | 152 |
| 23 | overholt | moses | M | 31 | Mennonite | German | Ontario | Farmers, general and nfs | 200 |
| 22 | overholt | moses | M | 70 | Mennonite | German | Ontario | Farmers, general and nfs | 205 |
| 23 | overholt | nelson | M | 51 | | German | Ontario | Farmers, general and nfs | 69 |
| 1 | overholt | philip | M | 56 | Mennonite | German | Ontario | Labourers nfs | 109 |
| 6 | overholt | rachel | F | 16 | Disciple of Christ | German | Ontario | No Occupation Listed | 109 |
| 4 | overholt | samanthe | F | 0 | Methodist | German | Ontario | No Occupation Listed | 206 |
| 9 | overholt | samuel | M | 34 | Disciple of Christ | German | Ontario | Labourers nfs | 68 |
| 13 | overholt | sarah | F | 9 | Methodist | German | Ontario | No Occupation Listed | 152 |
| 11 | overholt | simon | M | 19 | Disciple of Christ | German | Ontario | Labourers nfs | 77 |
| 2 | overholt | solomon | M | 28 | Mennonite | German | Ontario | Farmers, general and nfs | 192 |
| 7 | overholt | susan | F | 14 | Disciple of Christ | German | Ontario | No Occupation Listed | 109 |
| 24 | overholt | valeria | F | 24 | Disciple of Christ | German | Ontario | No Occupation Listed | 200 |
| 12 | overholt | william | M | 5 | Disciple of Christ | German | Ontario | No Occupation Listed | 68 |
| 3 | overholt | william | M | 39 | Disciple of Christ | German | Ontario | Labourers nfs | 151 |
| 6 | overholt | william | M | 47 | Methodist | German | Ontario | Labourers nfs | 152 |