Charlie Rose - Appearances by Guest Mary Duke Biddle Trent Semans A list of appearances by the guest. http://www.charlierose.com/ Charlie Rose - Appearances by Guest http://www.charlierose.com/images/logo.jpg http://www.charlierose.com/ A list of appearances by the guest. We remember: Philanthropist Mary Duke Biddle Trent Semans http://www.charlierose.com/view/content/12113 We remember Mary Duke Biddle Trent Semans http://www.charlierose.com/view/content/12115 A conversation with Anthony Drexel Duke & Mary Duke Biddle Trent Semans http://www.charlierose.com/view/content/9162