"Carrie Sheffield grew up fifth of eight children with a violent, mentally ill, street-musician father who believed he was a modern-day Mormon prophet destined to become U.S. president someday. She and her seven siblings were often forced to live as vagabonds, remaining on the move across the country. They frequently subsisted in sheds, tents, and, most notably, motorhomes. They often lived a dysfunctional drifter existence, camping out in their motorhome...