Melanie Chambers Hartman and Carolyn Thompson Dudley, from left, recently opened their exhibition “Common Ground” at Arts on Main in Gloucester. The exhibit is of Hartman’s plein air and studio works as well as of pieces Dudley created while the two were on a trip together out west. Shown with them, at right, is Theresa Stewart, owner of Stewart Gallery. The works will be on display through March 31. Photo by Eric Altizer ...