William Robert Hahn
Birthplace: Chino, California
Born: September 1, 1912
Died: May 25, 1934
Bob Hahn
William Robert Hahn
Birthplace: Chino, California
Born: September 1, 1912
Died: May 25, 1934
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| Date | Track | Type | Driver | Car # | Sponsor/Name | Chassis | Engine | Start | Finish | Laps | Status |
| 5/30/1934 | Indianapolis | BR | Peter Kreis | 14 | Miller-Hartz | Miller FD | Miller | -- | -- | -- | Wrecked practice - fatal |