Full record for Mainprize, William
| Last Name | Mainprize |
| First Name | William |
| Township | Gwillimbury East |
| County | York |
| Atlas Date | 1878 |
| Concession and Lot | Lot size |
| VIII, 6 | 100 |
| VIII, 6: |
|
| Copyright © McGill University, 2001 | |||
| Last Name | Mainprize |
| First Name | William |
| Township | Gwillimbury East |
| County | York |
| Atlas Date | 1878 |
| Concession and Lot | Lot size |
| VIII, 6 | 100 |
| VIII, 6: |
|
|
| Copyright © McGill University, 2001 | |||