Residents of Rainham — Sub-district B, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 16 | oconnell | edward | M | 28 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 329 |
| 21 | oconnell | ellen | F | 62 | Roman Catholic | Irish | Ontario | No Occupation Listed | 329 |
| 19 | oconnell | johanna | F | 19 | Roman Catholic | Irish | Ontario | No Occupation Listed | 329 |
| 18 | oconnell | john | M | 23 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 329 |
| 17 | oconnell | mary | F | 25 | Roman Catholic | Irish | Ontario | No Occupation Listed | 329 |
| 20 | oconnell | william | M | 17 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 329 |
| 21 | ohara | amelia | F | 27 | Roman Catholic | Irish | Ontario | No Occupation Listed | 178 |
| 20 | ohara | charles | M | 35 | Roman Catholic | Irish | Ontario | Farmers, general and nfs | 178 |
| 22 | ohara | elizabeth | F | 5 | Roman Catholic | Irish | Ontario | No Occupation Listed | 178 |
| 23 | ohara | mary | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 178 |
| 21 | orth | abraham | M | 60 | | German | Ontario | Farmers, general and nfs | 198 |
| 15 | orth | abraham | M | 3 | Evangelical Methodist | German | Ontario | No Occupation Listed | 336 |
| 11 | orth | alice | F | 14 | Evangelical Methodist | German | Ontario | No Occupation Listed | 336 |
| 22 | orth | elizabeth | F | 42 | Evangelical Methodist | German | Ontario | No Occupation Listed | 198 |
| 23 | orth | francis | M | 17 | Evangelical Methodist | German | Ontario | Farmers, general and nfs | 198 |
| 24 | orth | george | M | 15 | Evangelical Methodist | German | Ontario | Farmers, general and nfs | 198 |
| 9 | orth | jonas | M | 40 | | German | Ontario | Farmers, general and nfs | 336 |
| 12 | orth | joseph | M | 13 | Evangelical Methodist | German | Ontario | No Occupation Listed | 336 |
| 14 | orth | josiah | M | 6 | Evangelical Methodist | German | Ontario | No Occupation Listed | 336 |
| 25 | orth | mary | F | 12 | Evangelical Methodist | German | Ontario | No Occupation Listed | 198 |
| 10 | orth | mary | F | 36 | Evangelical Methodist | German | Ontario | No Occupation Listed | 336 |
| 12 | orth | peter | M | 66 | Evangelical Methodist | German | Germany | No Occupation Listed | 254 |
| 16 | orth | ruth | F | 1 | Evangelical Methodist | German | Ontario | No Occupation Listed | 336 |
| 13 | orth | william | M | 12 | Evangelical Methodist | German | Ontario | No Occupation Listed | 336 |
| 8 | otterman | adam | M | 65 | Lutheran | French | France | Farmers, general and nfs | 312 |
| 4 | otterman | caroline | F | 9 | Lutheran | German | Germany | No Occupation Listed | 331 |
| 3 | otterman | cathrine | F | 6 | | French | Ontario | No Occupation Listed | 311 |
| 11 | otterman | christine | F | 32 | Lutheran | French | Ontario | No Occupation Listed | 304 |
| 13 | otterman | edward | M | 2 | Lutheran | French | Ontario | No Occupation Listed | 304 |
| 12 | otterman | eliza | F | 5 | Lutheran | French | Ontario | No Occupation Listed | 304 |
| 4 | otterman | eliza | F | 5 | | French | Ontario | No Occupation Listed | 311 |
| 1 | otterman | fred | M | 30 | | French | Ontario | Farmers, general and nfs | 311 |
| 7 | otterman | james | M | 0 | | French | United States | No Occupation Listed | 311 |
| 10 | otterman | john | M | 35 | Lutheran | French | Ontario | Cartwrights and wheelwrights | 304 |
| 6 | otterman | john | M | 2 | | French | Ontario | No Occupation Listed | 311 |
| 2 | otterman | louise | F | 31 | | French | Ontario | No Occupation Listed | 311 |
| 3 | otterman | margrett | F | 48 | Lutheran | German | Germany | No Occupation Listed | 331 |
| 9 | otterman | susanna | F | 60 | Lutheran | French | France | No Occupation Listed | 312 |
| 5 | otterman | william | M | 3 | | French | Ontario | No Occupation Listed | 311 |
| 13 | otto | andrew | M | 59 | Lutheran | German | Germany | Farmers, general and nfs | 20 |
| 16 | otto | andrew | M | 17 | Lutheran | German | Ontario | Farmers, general and nfs | 20 |
| 17 | otto | anne | F | 15 | Lutheran | German | Ontario | No Occupation Listed | 20 |
| 19 | otto | catherine | F | 11 | Lutheran | German | Ontario | No Occupation Listed | 20 |
| 14 | otto | christina | F | 50 | Lutheran | German | Germany | No Occupation Listed | 20 |
| 15 | otto | christina | F | 18 | Lutheran | German | Ontario | No Occupation Listed | 20 |
| 21 | otto | louisa | F | 4 | Lutheran | German | Ontario | No Occupation Listed | 20 |
| 18 | otto | martin | M | 13 | Lutheran | German | Ontario | Farmers, general and nfs | 20 |
| 20 | otto | sarah | F | 8 | Lutheran | German | Ontario | No Occupation Listed | 20 |
| 7 | overholt | alice | F | 10 | Disciple of Christ | German | Ontario | No Occupation Listed | 78 |
| 13 | overholt | ann | F | 6 | Baptist | German | Ontario | No Occupation Listed | 30 |
| 3 | overholt | elias | M | 51 | Disciple of Christ | German | Ontario | Farmers, general and nfs | 78 |
| 4 | overholt | elizabeth | F | 40 | Disciple of Christ | German | Ontario | No Occupation Listed | 78 |
| 5 | overholt | elliot | M | 17 | Disciple of Christ | German | Ontario | Farmers, general and nfs | 78 |
| 10 | overholt | ida | F | 14 | Baptist | Blank | Ontario | No Occupation Listed | 90 |
| 13 | overholt | lizzie | F | 11 | Disciple of Christ | German | Ontario | No Occupation Listed | 135 |
| 10 | overholt | lyman | M | 34 | Baptist | German | Ontario | Farmers, general and nfs | 30 |
| 9 | overholt | magdalene | F | 49 | Baptist | French | France | No Occupation Listed | 90 |
| 6 | overholt | maynard | M | 13 | Disciple of Christ | German | Ontario | No Occupation Listed | 78 |
| 11 | overholt | nathan | M | 38 | Disciple of Christ | German | Ontario | Farmers, general and nfs | 135 |
| 12 | overholt | rose | F | 9 | Baptist | German | Ontario | No Occupation Listed | 30 |
| 8 | overholt | samuel | M | 51 | Baptist | Blank | Ontario | Farmers, general and nfs | 90 |
| 12 | overholt | sarah | F | 38 | Disciple of Christ | German | Ontario | No Occupation Listed | 135 |
| 11 | overholt | susanna | F | 34 | Baptist | German | Ontario | No Occupation Listed | 30 |