Doc Ball Skateboarding at Age 92Credits: Cark AckermanEncyclopedia of SurfingBall, John “Doc”skateboardingHistory of SurfingFreezing the Moment with Doc BallWe Own the SidewalksInterviewsDoc BallFeaturesJOHN "DOC" BALL: HOW TO FIX A TROUBLED SOULVideos"Skaterdater" (1965)1976 Ventura Skateboard ChampionshipsSkateboard: the Movie (1978 preview)Skateboarding in the '70sSkateboarding, 1965