Residents of Bayham — Sub-district H, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 14 | _ons | eleanor | F | 25 | Methodist | English | Ontario | No Occupation Listed | 167 |
| 13 | _ons | robert | M | 44 | Methodist | Irish | Nova Scotia | Seamen | 167 |
| 6 | oaks | adelaide | F | 14 | Protestant | Canadian | Ontario | No Occupation Listed | 89 |
| 9 | oaks | cassius | M | 6 | Protestant | Canadian | Ontario | No Occupation Listed | 89 |
| 5 | oaks | chancey | M | 16 | Protestant | Canadian | Ontario | Ambiguous responses | 89 |
| 1 | oaks | charles | M | 61 | Protestant | Canadian | Ontario | Farmers, general and nfs | 89 |
| 4 | oaks | henry | M | 19 | Protestant | Canadian | Ontario | Ambiguous responses | 89 |
| 11 | oaks | lafayette | M | 0 | Protestant | Canadian | Ontario | No Occupation Listed | 89 |
| 2 | oaks | mary | F | 42 | Protestant | Canadian | Quebec | No Occupation Listed | 89 |
| 7 | oaks | owen | M | 11 | Protestant | Canadian | Ontario | No Occupation Listed | 89 |
| 10 | oaks | violet | F | 3 | Protestant | Canadian | Ontario | No Occupation Listed | 89 |
| 3 | oaks | walter | M | 23 | Protestant | Canadian | Ontario | No Occupation Listed | 89 |
| 8 | oaks | wilemina | F | 9 | Protestant | Canadian | Ontario | No Occupation Listed | 89 |
| 17 | olsen | arthur | M | 6 | Methodist | Danish | Ontario | No Occupation Listed | 63 |
| 12 | olsen | catherine | F | 42 | Methodist | English | England | No Occupation Listed | 63 |
| 14 | olsen | elizabeth | F | 16 | Methodist | Danish | England | No Occupation Listed | 63 |
| 15 | olsen | frank | M | 11 | Methodist | Danish | Ontario | No Occupation Listed | 63 |
| 11 | olsen | james | M | 44 | Methodist | Danish | Denmark | Farmers, general and nfs | 63 |
| 13 | olsen | james | M | 18 | Methodist | Danish | England | Ambiguous responses | 63 |
| 16 | olsen | katie | F | 8 | Methodist | Danish | Ontario | No Occupation Listed | 63 |
| 19 | olsen | louisa | F | 1 | Methodist | Danish | Ontario | No Occupation Listed | 63 |
| 18 | olsen | olof | M | 3 | Methodist | Danish | Ontario | No Occupation Listed | 63 |
| 8 | orton | george | M | 13 | Baptist | English | Ontario | No Occupation Listed | 114 |
| 11 | orton | rosetta | F | 68 | Baptist | English | Ontario | No Occupation Listed | 116 |
| 6 | orton | roxana | F | 51 | Baptist | English | Ontario | No Occupation Listed | 114 |
| 5 | orton | william | M | 60 | Baptist | English | United States | Farmers, general and nfs | 114 |
| 7 | orton | william | M | 20 | Baptist | English | Ontario | Teachers (unspecified) | 114 |
| 12 | ostrander | charlett | F | 44 | Methodist | German | United States | No Occupation Listed | 225 |
| 22 | ostrander | emy | F | 10 | Methodist | German | Ontario | No Occupation Listed | 227 |
| 13 | ostrander | eusebia | F | 17 | Methodist | German | Ontario | No Occupation Listed | 225 |
| 14 | ostrander | lovisa | F | 15 | Methodist | German | Ontario | No Occupation Listed | 225 |
| 25 | ostrander | maggs | F | 16 | | Dutch | Ontario | Servants nfs | 269 |
| 19 | ostrander | mary | F | 47 | Methodist | Dutch | Ontario | Female farmer | 227 |
| 20 | ostrander | melven | M | 23 | Methodist | German | United States | No Occupation Listed | 227 |
| 21 | ostrander | musene | M | 15 | Methodist | German | Ontario | No Occupation Listed | 227 |
| 15 | ostrander | sarah | F | 78 | Methodist | German | Ontario | No Occupation Listed | 225 |
| 11 | ostrander | simon | M | 39 | Methodist | German | Ontario | Farmers, general and nfs | 225 |