Residents of Thorold, Village — Sub-district I, surnames Y (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 18 | yocum | lavena | F | 25 | Methodist | Dutch | Ontario | Tailors and tailoresses | 70 |
| 17 | yocum | peter | M | 86 | Presbyterian | Dutch | United States | Carpenters | 70 |
| 19 | young | henry | M | 57 | Methodist | Dutch | Ontario | Coopers etc. | 258 |
| 20 | young | teresey | F | 56 | Methodist | Irish | United States | No Occupation Listed | 258 |
| 7 | yule | agnes | F | 3 | Presbyterian | Scottish | Ontario | No Occupation Listed | 210 |
| 6 | yule | andrew | M | 5 | Presbyterian | Scottish | Ontario | No Occupation Listed | 210 |
| 8 | yule | christine | F | 1 | Presbyterian | Scottish | Ontario | No Occupation Listed | 210 |
| 3 | yule | jennet | F | 38 | Presbyterian | Scottish | Scotland | No Occupation Listed | 210 |
| 5 | yule | jennet | F | 7 | Presbyterian | Scottish | Ontario | No Occupation Listed | 210 |
| 4 | yule | john | M | 13 | Presbyterian | Scottish | Scotland | No Occupation Listed | 210 |
| 2 | yule | robert | M | 36 | Presbyterian | Scottish | Scotland | Blacksmiths | 210 |