"1800 - 1899" . . . . "Records and correspondence" . . . . . . . . . . "Letters" . "Letters"@en . . . . . . . . . . . . . "Letters written by Walt Whitman to his mother 1866-1872" . "Letters written by Walt Whitman to his mother : 1866-1872" . . "Walt Whitman's letters to his mother, 1866-1872" . "Walt Whitman's letters to his mother, 1866-1872"@en . . "Letters written by Walt Whitman to his mother : 1866-1872. With an introd. note by Rollo G. Silver" . . "Letters written by Walt Whitman to his mother, 1866-1872" . "Letters written by Walt Whitman to his mother, 1866-1872"@en . . "Letters written by Walt Whitman to his Mother, 1866-1872, etc"@en . "Records and correspondence"@en .