Contributed by Bill Arning / The Thomas Cole National Historic Site in Catskill presents a conspicuous curatorial challenge. It no longer owns any of Cole’s major paintings and relies heavily on devoted visitors remembering his masterpieces sufficiently that encountering the rooms where they were conceived will hold interest. Given this, its single-artist focus, and fixed historical narrative, the museum also often invites contemporary artists to enliven the experience it offers. This approach can fail because if the living artist is reduced to little more than an interpretive prompt to appreciating a familiar figure. But Valerie Hegarty, with her devotion to an aesthetic of destruction infused with autobiographical trauma, is a truly provocative foil for the works of Emily Cole, Thomas Cole’s daughter.