The Traction-Engine Derby - It's Derby Day for five iron horses and ... "They're off." Lady Grove, owned and driven by ex-fighter pilot Miles Chetwynd-Stapylton, 31, hurtles into the lead only to be pursued, nay, was overtaken by Old Timer, which eventually won the mile race in farmer Arthur Napper's meadow at Appleford, Berks. Second spectators and two bookies watched this race for traction engines, which is an annual event. June 09, 1952. (Photo by Mirror Pic).;The Traction-Engine Derby - It's