This is the first thorough guide to the design and history of Kentuck, a splendid mountain house in southwestern Pennsylvania designed in 1953 1954 by Frank Lloyd Wright. Inspired by Fallingwater, the famous house only seven miles away that Wright designed above the waterfalls of Bear Run, local businessman I. N. Hagan and his wife, Bernardine, commissioned the 86-year-old Wright to design this home.

Kentuck, constructed on an isolated knoll, or knob, is now owned by Lord Palumbo of London and is open for public tours. This vivid account tells the story of how the house came to be,...