Emma Gatewood told her family she was going on a walk and left her small Ohio hometown with a change of clothes and less than two hundred dollars. The next anybody heard from her, this genteel, farm-reared, 67-year-old great-grandmother had walked 800 miles along the 2,050-mile Appalachian Trail. And in September 1955, having survived a rattlesnake strike, two hurricanes, and a run-in with gangsters, she stood atop Maine's Mount Katahdin. There she...

After moonrise on the cold night of January 21, 1897, a mob of twenty-five white men gathered in a patch of woods near Big Road in southwestern Simpson County, Kentucky. Half carried rifles and shotguns, and a few tucked pistols in their pants. Their target was George Dinning, a freed slave who'd farmed peacefully in the area for 14 years, and who had been wrongfully accused of stealing livestock from a neighboring farm. When the mob began firing...