Hartwell Wilburn "Stubby" Stubblefield (possibly born Wilburn Hartwell Stubblefield, c. December 28, 1907 – May 21, 1935) was an American racing driver.

Furthermore, a newspaper article states that he was 27 years old at the time of his death,[1] which implies a birthdate between May 22, 1907 and May 21, 1908.

The 1910 United States Census lists him as being the age of two when his family was recorded on April 25, 1910, and living in Oklahoma City.

[2] Stubblefield was the first driver ever killed during a qualification attempt at the Indianapolis Motor Speedway when he and Leo Whitaker (his riding mechanic) struck a wall on a time trial run; both were killed.

[1] He is buried at Angeles Abbey Memorial Park, Compton, California.