The date was March 18, 1937. Just minutes before the dismissal bell rang at London School in tiny East Texas boomtown of New London, something shocking happened: a deadly natural gas explosion destroyed the school and brought the oil-rich community to its knees. Nearly 300 students, teachers, and visitors - an entire generation of East Texans - were killed. Those who survived and those who worked tirelessly in the debris to find the dead and injured were forever changed. Because their memories were so painful, the intimate details of the worst disaster in American history were silenced for...