Willard Cable Prentiss
Birthplace: Chicago, Illinois
Born: December 10, 1897
Died: October 1, 1959
Willard Prentiss
Willard Cable Prentiss
Birthplace: Chicago, Illinois
Born: December 10, 1897
Died: October 1, 1959
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| Track | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Indianapolis | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 13 | 0 |
| Chassis | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Hudson | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Rigling | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 |
| Unknown | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Engine | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Duesenberg | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 |
| Hudson | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Wehr | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |