John B. Helston (born October 30, 1939) is a Canadian #curler and curling #coach. He won the #1984Brier playing #second on the #MikeRiley rink. He also won the #1991CanadianSeniorCurlingChampionships and the 2004 #CanadianMastersCurlingChampionships, and was runner up at the #1998CanadianSeniorCurlingChampionships. He coached team #JenniferJones at her #firstHeartsAppearanceIn2002. At the time of the 1984 Brier.