Luther Alexander Johnson
Birthplace: South Bend, Indiana
Born: July 19, 1903
Died: April 12, 1978
Luther Johnson
Luther Alexander Johnson
Birthplace: South Bend, Indiana
Born: July 19, 1903
Died: April 12, 1978
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| Track | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Detroit-DO | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Indianapolis | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 10 | 0 |
| Chassis | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Bugatti | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Hudson | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Rigling | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 |
| Studebaker | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Unknown | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Engine | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Bugatti | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Duesenberg | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Hudson | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Studebaker | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |