Elmer Dempsey
Birthplace: St. Louis, Missouri
Born: June 13, 1897
Died: December 8, 1929
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| Track | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Indianapolis | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Kansas City | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Chassis | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Frontenac | 0 | 2 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Mercedes | Relief | drove | only |
| Engine | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Frontenac | 0 | 2 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Mercedes | Relief | drove | only |