Harlem Renaissance writer Dorothy West led a charmed life in many respects. Born into a distinguished Boston family, she appeared in Gershwin's Porgy and Bess, then lived in the Soviet Union with a group that included Langston Hughes, to whom she proposed marriage. She later became friends with Jacqueline Kennedy Onassis, who encouraged her to finish her second novel, The Wedding , which became the octogenarian author's first bestseller. Literary...