Killed in a practice crash for the Indy 500. His surname was often not certain with Stibblefield and Stubblefiel both appearing on official records, but W.H. stands for Wilburn Hartwell, although it appears he swapped the names around, because he was buried as Hartwell W. Stubblefield. He started racing in 1927 as a 17 year old, but despite his youth, he proved more than capable of handling fast, big, powerful cars against more experienced opposition. Stubblefield was extremely good in sprint car racing, but also won frequently in stock cars. Stubblefield won the 1934 AAA Gilmore Gold Cup at a track in Inglewood, which is now the site of Los Angeles International Airport.

Biography last updated 1 Oct 2015