Roosevelt's Colt revolver on display at Sagamore Hill. Courtesy of Sagamore Hill National Historic SiteRoosevelt later took it into battle, using it to shoot at enemy forces. Following Roosevelt’s death in 1919, the Sagamore Hill estate in Oyster Bay, New York, was home to his wife, Edith, until her death in 1948. The property was later donated to the National Park Service in 1963 and became Sagamore Hill National Historic Site. Courtesy of Sagamore Hill National Historic SiteAfter Anderson contacted Sagamore Hill, FBI agents were dispatched from the Daytona Beach office to DeLand to question Anderson.