Many books have been written about Ernest Hemingway, but no book has focused on the women he knew and loved and sometimes hated his mother, who was the lifelong recipient of his invective; his wives; and others who captivated him. Hemingway married four times, each time to a fascinating person: Hadley Richardson, who shared the Paris years and one son; Pauline Pfeiffer, the mother of two more sons, who created a haven in Key West; Martha Gellhorn, a writer and acclaimed journalist; and Mary Welsh, a Time correspondent. Drawing on letters and interviews with the living women, Bernice Kert...