Residents of Willoughby — Sub-district G, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 6 | oliver | alice | F | 16 | Methodist | English | Ontario | No Occupation Listed | 206 |
| 1 | oliver | charles | M | 53 | Methodist | English | England | Farmers, general and nfs | 206 |
| 2 | oliver | deborah | F | 51 | Methodist | English | Ontario | No Occupation Listed | 206 |
| 4 | oliver | elizabeth | F | 23 | Methodist | English | Ontario | Dressmakers | 206 |
| 3 | oliver | francis | M | 44 | Methodist | English | England | Farmers, general and nfs | 232 |
| 8 | oliver | frank | M | 6 | Methodist | English | Ontario | No Occupation Listed | 206 |
| 4 | oliver | george | M | 20 | Methodist | English | Ontario | Farmers, general and nfs | 232 |
| 3 | oliver | james | M | 30 | Methodist | English | Ontario | Teachers (unspecified) | 206 |
| 5 | oliver | louise | F | 21 | Methodist | English | Ontario | Milliners | 206 |
| 7 | oliver | margart | F | 11 | Methodist | English | Ontario | No Occupation Listed | 206 |
| 19 | ort | barbera | F | 50 | Presbyterian | German | Germany | No Occupation Listed | 152 |
| 23 | ort | catherine | F | 19 | Presbyterian | German | Ontario | No Occupation Listed | 152 |
| 2 | ort | george | M | 9 | Presbyterian | German | Ontario | No Occupation Listed | 152 |
| 22 | ort | jacob | M | 20 | Presbyterian | German | Ontario | Farmers, general and nfs | 152 |
| 25 | ort | john | M | 13 | Presbyterian | German | Ontario | No Occupation Listed | 152 |
| 1 | ort | margart | F | 11 | Presbyterian | German | Ontario | No Occupation Listed | 152 |
| 20 | ort | martin | M | 23 | Presbyterian | German | Ontario | Farmers, general and nfs | 152 |
| 3 | ort | mary | F | 6 | Presbyterian | German | Ontario | No Occupation Listed | 152 |
| 24 | ort | peter | M | 16 | Presbyterian | German | Ontario | Farmers, general and nfs | 152 |
| 18 | ort | philip | M | 59 | Presbyterian | German | Germany | Farmers, general and nfs | 152 |
| 21 | ort | rosanna | F | 22 | Presbyterian | German | Ontario | No Occupation Listed | 152 |