Six area residents will participate in full- or half-marathon events at the annual Grandma’s Marathon in Duluth on Saturday, June 21. Participating in the Garry Bjorklund Half Marathon are Mary E. Johnson of Kimball and Nathan Hoffman of South Haven. Participating in the full Grandma’s Marathon are Charlie Johnson of Kimball, Michael Schmidt and Ted Nordberg of South Haven, and Joni Butterfass of Watkins.