Leon Andrew Trowbridge
Birthplace: Herrick Township, Pennsylvania
Born: February 26, 1919
Died: July 13, 1990
Leon Trowbridge
Leon Andrew Trowbridge
Birthplace: Herrick Township, Pennsylvania
Born: February 26, 1919
Died: July 13, 1990
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| Track | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Altamont | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Chassis | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Unknown | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Engine | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Unknown | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |