My collection of Kennedy materials is primarily limited to hundreds of books and thousands of pages of documents released through the National Archives in Washington, D.C. I have a few small collectibles that I have purchased in Dallas, Texas and Boston, Massachusetts (at the Kennedy Library), plus Wright Patterson Air Force Base in Dayton, Ohio, where President Kennedy's Air Force One airplane is permanently on display. I also collect professional display models of the various Presidential aircraft (JFK's Air Force One, the current Air Force One, the current Air Force Two, and the current Marine One helicopter).