When John F. Baker Jr. was in the seventh grade, he saw a photograph of four former slaves in his social studies textbook--two of them were his grandmother's grandparents. He began the lifelong research project that would become The Washingtons of Wessyngton Plantation, the fruit of more than thirty years of archival and field research and DNA testing spanning 250 years. A descendant of Wessyngton slaves, Baker has written the...