Focus on Presidential Grave Sites ~ Richard Nixon: America's 37th president was sworn into office on January 20, 1969. His term ended with his resignation at noon on August 9, 1974, while aboard Air Force One. A helicopter, Army One, took him from the White House to Andrews Air Fore Base, where he began the journey home to California. The chopper is on display at the Nixon Library. It all happened 42 years ago this week. Chosen for his headstone: "The greatest honor history can bestow is the title of peacemaker."