Dave ClarkDave Clark is a professional photographer and has been a woodworker, ceramic furnace operator, car salesman, skydiving instructor, radio announcer, parachute designer, chemical batch maker, forklift operator, hockey referee, produce deliverer, comedywriter, Zamboni driver, and amateur open-mike comedian. But mostly he has been the world's greatest collector of knuckleball lore. He lives with his wife and two children in Barre, Massachusetts. Read More Read Less