All available race results H. Williamson
| Date | Race | Rank |
| 01/06 | Anfield 100 Invitational | 34 |
Rider information for 1914
| Rank | 640 |
| Score | 0 |
| Name | H. WILLIAMSON |
| Country | Great Britain |
| Team | Individual |
| Date | Race | Rank |
| 16/05 | Anfield 100 Invitational | 14 |
Rider information for 1921
| Rank | 695 |
| Score | 6 |
| Name | H. WILLIAMSON |
| Country | Great Britain |
| Team | Individual |