Daughter of the "Wolf of Wall Street," Belle Baruch (18991964) could outride, outshoot, outhunt, and outsail most of the young men of her elite social circle. Unapologetic for her athleticism and interests in traditionally masculine pursuits, Baruch towered above male and female counterparts in height and daring. Miller details Belle's fox hunting at Hobcaw, show jumping at Deauville, flying her own plane, and traveling with Edith Bolling Wilson. She recounts Belle's efforts to win her mother's approval and her father's attention, as well as her unraveling relationships with friends, family,...