Frank Kurtis, born in 1908, was an American racing car designer who founded the Kurtis Kraft company in 1908. He started by building midget cars, later going on to build many cars for the Indianapolis 500 race and a number of sports cars using Ford running gear. I remember particularly the Indianapolis cars from when I was beginning to read about motor sport in the early 1950s. Kurtis sports cars are occasionally seen at historic race meetings in England and the Kurtis SX500 pictured below took part in the Hawthorn Memorial Trophies race meeting organised by the VSCC at Oulton Park in June 2008.
Here's the car, driven by Kerry Horan, at Britten's Chicane during the Hawthorn International Trophy race for 1950s sports cars.