Central to the exhibit is Truman Capote’s legendary Black and White Ball, a glamorous evening at the Plaza Hotel that the “In Cold Blood” author gave in Graham’s honor. A coming out for the still-unknown publisher, the 1966 ball attracted more than 500 guests from Hollywood, fashion, arts, media and philanthropic circles. The exhibition includes a photograph of a smiling Graham clasping Capote’s hand, with New York Times reporter Charlotte Curtis jotting notes on a pad in the background. Also pictured are Douglas Fairbanks Jr., Frank Sinatra and Mia Farrow, Oscar de la Renta, Rose Kennedy and Gordon Parks. Graham’s beaded Bergdorf Goodman gown and Halston mask will be on view, along with Capote’s tuxedo jacket.