E. J. Potter

E. J. Potter (April 24, 1941 - April 30, 2012), a.k.a. the Michigan Madman, was an American dragstrip exponent. Writing his obituary in 2012, Paul Vitello of the New York Times described him as a "legend".

Born in Ithaca, Michigan, Elon Jack Potter grew up on a farm repairing tractor engines, which led to building motorcycles. In high school, he wondered if he could build a bike with a V8 engine. The bike he built, named "Bloody Mary", was tested at a local strip and reached 130 mph (210 km/h).

He later built a three-wheeled motorcycle with a United States military surplus rocket engine. "The Widowmaker" set three world land speed records. Potter's other creations include putting a jet engine in a Motorized tricycle and putting WWII airplane engines into tractors for tractor pull competitions.

Beginning soon after his high school graduation, Potter toured the racing circuit for 13 years with his creations.

In 2017, Potter's1971 Widowmaker 7 went up for auction in Las Vegas. Potter's motorcycles were featured on an episode of American Pickers in 2019.