Theater 2015-16: American Blues will trumpet three decades with gritty anthem of ‘Rainmaker’

Third in a series of season previews: Gwendolyn Whiteside, the producing artistic director of American Blues Theater, sees a cosmic – or perhaps the better word is earthly — connection between her company and N. Richard Nash’s play “The Rainmaker,” which opens ABT’s season. “What draws us to ‘The Rainmaker,’” she says, “is its expression of incredible human resilience and the human need for hope.”