Guardian of the Sound: A Pictorial History of Fort H.G. Wright Fishers Island, New York by Pierce Rafferty and John Wilton. The above web site has PDF files of some of the text and a few examples of the excellent collection of pictures in this book, plus ordering information. U.S. $50.00 plus $5.00 shipping and handling (NY residents add $4.13 sales tax) c/o Pierce Rafferty.