When the owners of the Circle of Hope boarding school in Humansville, Missouri, were arrested last year on more than 100 combined charges of child abuse and neglect, authorities pointed to an unlikely whistleblower: their 31-year-old daughter, Amanda Householder. In a new lawsuit filed in Polk County Court, Householder alleges that her parents, Boyd and Stephanie Householder, routinely abused her and her younger brother, beating them with golf clubs and a leather whip and force-feeding them until they vomited. She also alleges the couple abused the teenage girls entrusted to their care at Circle of Hope and forced her to...