Crazy Horse Memorial sculptor Korczak Ziolkowski, who worked on Mount Rushmore under Gutzon Borglum. He informed the sculptor, "My fellow chiefs and I would like the white man to know that the red man has great heroes, too." Standing Bear also wrote a letter to Undersecretary Oscar Chapman of the Department of the Interior, offering all his own fertile 900 acres (365 ha) in exchange for the barren mountain for the purpose of paying honor to Crazy Horse. The government responded positively, and the National Forest Service, responsible for the land, agreed to grant a permit for the use of the land, with
Gutzon Borglum Rushmore project, 1927–1941, was the brainchild of South Dakota state historian Doane Robinson. His first attempt with the face of Thomas Jefferson was blown up after two years. Dynamite was also used to remove large areas of rock from under Washington's brow. The initial pair of presidents, George Washington and Thomas Jefferson was soon joined by Abraham Lincoln and Theodore Roosevelt. Ivan Houser, father of John Sherrill Houser, was assistant sculptor to Gutzon Borglum in the early years of carving; he began working with Borglum shortly after the inception of the monument and was with Borglum for a total of