Doctoral candidate discovers early Walt Whitman novel AP February 21, 2017, 2035 PM Zachary Turpin, a University of Houston graduate student, poses for a portrait at his home, Thursday, Feb. 16, 2017, in Houston. Turpin recently discovered a previously unknown novella by the poet Walt Whitman. Jon Shapley/Houston Chronicle via AP Doctoral candidate discovers early Walt Whitman novel AP February 21, 2017, 2:35 PM