Postscript to the Indy 500

After posting about the Indy 500 a few days ago, I received several interesting photos from John J. O'Leary IV, with whom I have been in touch in recent months. (He is writing a book about Gustav Reuter and Reuter Coachworks, the premier car restorer who handled many of my father's cars over the years. More about John and his project in a later post.)

Anyhow, I would love to know how and why Clark Gable and my father were at the Race together, and what year it might have been. I imagine my parents got to know Gable when they were living in Hollywood in the 1930s while my father made several movies.  Oh to be a fly on the wall...

Any idea who the guy in the hat might be?