Duke Dinsmore

Duke Dinsmore is a American former Formula 1 driver. Made four world championship starts between 1950 and 1956, each of them at the indianapolis 500, the race that formed part of the formula 1 world championship during the 1950s. he was among the field for the very first championship indianapolis 500 in 1950, driving a kurtis kraft, at the age of thirty-seven.

He returned in 1951 with a Schroeder chassis, then made further Kurtis Kraft appearances in 1953 and 1956. None of the four outings produced championship points.

Dinsmore's record — four starts spread across seven seasons — reflects the intermittent nature of many Indianapolis careers of the era, with qualification for the race itself a significant hurdle each May.