. . . . . . . . . "1843 April 22, Philadelphia, Poe to Thomas G. Mackenzie, [7035]; and 1848, Nov. 14 (no. 285 in Ostrom) Poe to Sarah Helen Power \"Mrs. John Winslow Whitman, transcribed by her on the reverse of the envelope [7035-a]." . "Letters of Edgar Allen Poe" .