Residents of Pelham — Sub-district G, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 22 | obryan | sarah | F | 21 | Presbyterian | English | England | Servants nfs | 101 |
| 23 | oconnor | james | M | 12 | Roman Catholic | Irish | United States | No Occupation Listed | 71 |
| 21 | oconnor | mary | F | 30 | Roman Catholic | Irish | Ireland | No Occupation Listed | 71 |
| 20 | oconnor | timothy | M | 38 | Roman Catholic | Irish | Ireland | Nursery workers | 71 |
| 22 | oconnor | william | M | 14 | Roman Catholic | Irish | United States | No Occupation Listed | 71 |
| 20 | oill | agnes | F | 44 | Presbyterian | German | Ontario | No Occupation Listed | 218 |
| 1 | oill | elenor | F | 66 | Methodist | German | Ontario | No Occupation Listed | 242 |
| 19 | oill | eli | M | 45 | Presbyterian | German | Ontario | Farmers, general and nfs | 218 |
| 2 | oill | elizabeth | F | 34 | Anglican | German | Ontario | Teachers (unspecified) | 242 |
| 25 | oill | ezsa | M | 68 | Protestant | German | Ontario | Farmers, general and nfs | 242 |
| 21 | oill | isaac | M | 21 | Presbyterian | German | Ontario | No Occupation Listed | 218 |
| 22 | oill | john | M | 17 | Presbyterian | German | Ontario | No Occupation Listed | 218 |
| 6 | oldricht | isaac | M | 46 | Anglican | English | England | Boot and shoemakers and repairers | 116 |
| 1 | olive | chas | M | 36 | Methodist | Irish | Ontario | river drivers | 109 |
| 5 | olive | edward | M | 4 | Methodist | Irish | Ontario | No Occupation Listed | 109 |
| 4 | olive | isabella | F | 11 | Methodist | Irish | Ontario | No Occupation Listed | 109 |
| 3 | olive | mary | F | 13 | Methodist | Irish | Ontario | No Occupation Listed | 109 |
| 2 | olive | prscillia | F | 35 | Methodist | Blank | Ontario | No Occupation Listed | 109 |
| 22 | onieal | matilda | F | 12 | Methodist | Irish | Ontario | No Occupation Listed | 58 |
| 8 | ostrander | jacob | M | 26 | Dutch Reformed Church | Dutch | Nova Scotia | Farmers, general and nfs | 54 |
| 1 | overholt | agnes | F | 3 | Anglican | German | Ontario | No Occupation Listed | 53 |
| 1 | overholt | alice | F | 13 | Roman Catholic | German | Ontario | No Occupation Listed | 40 |
| 22 | overholt | bridget | F | 43 | Roman Catholic | Irish | Ireland | No Occupation Listed | 40 |
| 2 | overholt | catharne | F | 7 | Roman Catholic | German | Ontario | No Occupation Listed | 40 |
| 24 | overholt | chas | M | 17 | Roman Catholic | German | Ontario | No Occupation Listed | 40 |
| 3 | overholt | henry | M | 61 | Dunker/Tunker/Dunkard | German | Ontario | Farmers, general and nfs | 54 |
| 21 | overholt | james | M | 42 | Baptist | German | Ontario | Farmers, general and nfs | 40 |
| 25 | overholt | jas | M | 15 | Roman Catholic | German | Ontario | No Occupation Listed | 40 |
| 23 | overholt | john | M | 19 | Roman Catholic | German | Ontario | No Occupation Listed | 40 |
| 4 | overholt | margaret | F | 53 | Anglican | Welsh | Ontario | No Occupation Listed | 54 |
| 24 | overholt | martin | M | 31 | Anglican | German | Ontario | Farmers, general and nfs | 53 |
| 25 | overholt | sarah | F | 27 | Anglican | English | Ontario | No Occupation Listed | 53 |
| 2 | overholt | susan | F | 1 | Anglican | German | Ontario | No Occupation Listed | 53 |