A raging flood in Missouri took the lives of a married couple who barely got their three-year-old son into a cradle that carried him downstream. The parents were drowned. A kind rancher managed to pull the makeshift device to shore and wound up calling the boy Dave and raising the youngster to manhood without a known family name. The savior didn't officially adopt the boy but they behaved as a loving father and son in adult life. A scoundrel family...