06 Marie Dieng Published July 1, 2015 at 4912 × 3264 in Thank you for your leadership David Skorton and Robn Davisson greet Marie Dieng, an associate buyer with Smithsonian Enterprises. (Photo by John Gibbons) David Skorton and Robn Davisson greet Marie Dieng, an associate buyer with Smithsonian Enterprises. (Photo by John Gibbons)