Son of an Ontario coach driver, Stull landed in New York to pursue a career as an actor, got a job with an insurance firm, began to sketch pictures of boats and horses, and found his way to the staff of Leslie’s em>Illustrated Weekly. There he began to produce commissions for Mr. August Belmont Sr., and his career painting racehorses took off. Primarily an illustrator, his work is exceedingly accurate, especially regarding the color of the horse. He painted for many famous scions of the Turf, including his longtime patrons, Pierre and George Lorillard.