Gutzon Borglum seven years. When Houser left Gutzon to devote his talents to his own work, Gutzon's son, Lincoln, took over as Assistant-Sculptor to his father. Borglum alternated exhausting on-site supervising with world tours, raising money, polishing his personal legend, sculpting a Thomas Paine memorial for Paris and a Woodrow Wilson memorial for Poznań, Poland (1931). In his absence, work at Mount Rushmore was overseen by his son, Lincoln Borglum. During the Rushmore project, father and son were residents of Beeville, Texas. When he died in Chicago, following complications after surgery, his son finished another season at Rushmore, but left the monument
Solon Borglum group of the sculptor's descendants gave twenty bronzes, marbles, original plasters, portfolios of drawings and paintings to the New Britain Museum of American Art. Today the Museum houses the largest repository of Borglum's works. Borglum sculpted a larger than life bronze equestrian statue for the "Bucky O'Neill Monument, Rough Rider" at the Yavapai County Court House Plaza in Prescott, Arizona. Teddy Roosevelt had persuaded Buckey O'Neill to join the Rough Riders and he was killed at the Battle of San Juan Hill. Borglum's statue "Cowboy at Rest" is also located on the grounds of the Yavapai County Court House in