Growing up in Mineral Wells, Texas, during the 1950s and 60s was anything but idyllic for Walter Ashby. Due to a misdiagnosis and medical error, his sister Janie went from being a lively young girl to a shell of a person who required their parents' attention 24 hours a day, every day. To add insult to injury, his parents received another blow: before Walter was six years old, he lost 98 percent of his vision, leaving him legally blind. Speaking as though he was not present, doctors told Walter's parents not to expect much: he wouldn't graduate from high school, let alone attend college. He...