Rear Admiral Daniel May, a 1979 graduate of the U.S. Coast Guard Academy, is the recipient of a Distinguished Service Medal and many other awards. During his career, he served as the engineer for major lighthouse projects, including the relocation of Block Island Southeast Light in Rhode Island (the first move of a major lighthouse in the United States), the relocation of Highland Light on Cape Cod, and the design and construction of a revetment to protect Montauk Light on Long Island, New York. This book tells the story of RADM May's decades of working to preserve America's lighthouses and other aids to navigation.