David "Salt" Walther was a driver in the USAC and CART Championship Car series. He also drove NASCAR stock cars and unlimited hydroplane boats, and was a car owner in USAC. Walther is best remembered for a crash at the start of the 1973 Indianapolis 500 that left him critically injured. He recovered from his injuries, returned in 1974, and placed 9th in the 1976 race. He also co-drove a car with Bob Harkey to 10th place in 1975.

Rocky Moran, Sr. is a retired American race car driver. Moran, Sr. started three Indianapolis 500-mile (800 km) races with a best finish of 14th in 1989.