Gutzon Borglum involved in the strife. Later, he stated, "I am not a member of the Kloncilium, nor a knight of the KKK," but Howard Shaff and Audrey Karl Shaff add that "that was for public consumption." The museum at Mount Rushmore displays a letter to Borglum from D. C. Stephenson, the infamous Klan Grand Dragon who was later convicted of the rape and murder of Madge Oberholtzer. The 8x10 foot portrait contains the inscription "To my good friend Gutzon Borglum, with the greatest respect." Correspondence from Borglum to Stephenson during the 1920s detailed a deep racist conviction in Nordic moral superiority
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