Vidal, Gore. (1925–2012) [Silverman, Kenneth. (1936–2017)] Autograph LetterAutograph letter from the important American author and intellectual to writer Kenneth Silverman, thanking him for sending a copy of his biography of Cotton Mather. 2 pp., n. d., with original envelope postmarked September 9, 1985. Vidal writes: "Dear Mr. Silverman, I cannot thank you enough for your Cotton Mather, a book known to me but unread Now I begin I've always thought the deepest of our roots & by no means all malign is that Puritan one which