Dr. Harelle Duncan, who visited Haiti on a mission trip June 12 to 19 will present a special program at 7 p.m. Tuesday at St. Mary’s Missionary Baptist Church, 69 Washington St., sponsored by Pastors United. Duncan provided medical aid and comfort to victims of the 2010 earthquake, and she will share a first-hand account of the devastation she witnessed on the trip back to her native country …