James (Jaimey) Irwin of Stouffville, ON swept the Advanced Division at the Cornerstone Farms Summer Festival, July 15-17, 2011, held at the Caledon Equestrian Park.  Riding Winston, Mary Ellen Horgan’s 14-year-old Dutch Warmblood gelding by Whinny Jackson, Irwin earned scores of 70.684% in the Prix St. Georges, 70.132% in the Intermediaire 1, and 73.875% in […]