Walt Whitman: Published and Manuscript "Calamus," leaves 1 and 2, "Leaves of Grass," autograph manuscript, Walt Whitman, Clifton Waller Barrett Library of American Literature "Calamus" Leaves of Grass / Walt Whitman (Boston, Thayer and Eldridge, 1860-61) Clifton Waller Barrett Library of American Literature, PS 3201 1860