Mount Rushmore still disputed on the basis of the 1868 Treaty of Fort Laramie (see section "Controversy" below). Among American settlers, the peak was known variously as Cougar Mountain, Sugarloaf Mountain, Slaughterhouse Mountain, and Keystone Cliffs. It was named Mount Rushmore during a prospecting expedition by Charles Rushmore, David Swanzey (husband of Carrie Ingalls), and Bill Challis. Historian Doane Robinson conceived the idea for Mount Rushmore in 1923 to promote tourism in South Dakota. In 1924, Robinson persuaded sculptor Gutzon Borglum to travel to the Black Hills region to ensure the carving could be accomplished. Borglum had been involved in sculpting the
John Gregory (sculptor) John Gregory (sculptor) John Clements Gregory (May 17, 1879, London, England – 1958) was an American sculptor. When he was about 12 years old his family immigrated to the United States where he began his sculptural studies at the Art Students League in New York City. He continued these at both the École des Beaux-Arts in Paris and at the American Academy in Rome. At various times he studied with J. Massey Rhind, George Grey Barnard, Hermon MacNeil, Gutzon Borglum, Herbert Adams, and Antonin Mercié. He became a United States citizen in 1912 and during the First World War served