In The Silver Swan Even though Duke was the subject of constant scrutiny, little beyond the tabloid accounts of her behavior has been publicly known. In 2012, when eight hundred linear feet of her personal papers were made available, Sallie Bingham set out to probe her identity. She found an alluring woman whose life was forged in the Jazz Age, who was not only an early war correspondent but also an environmentalist, a surfer, a collector of Islamic art, a savvy businesswoman who tripled her father's fortune, and a major philanthropist with wide-ranging passions from dance to historic preservation to human rights.