Back to the "two presidents I would like to share a railway carriage on a long journey with" issue, Jimmy would definitely be one. The other would depend on whether or not my wife was along for the journey. If she was along I guess it would have to be Jack Kennedy. If it was just me and the ex-prez, then it would have to be ole Slick Willie himself, of course. You know, assuming there might be a handful of unaccompanied young women of questionable morals on the same train why not be in the company of a pro?