Ralph E PrayDr. Ralph E. Pray is an engineer and author who owns an independent research laboratory in Los Angeles County to resolve problems in the mineral industry. He has taught engineering at the university level and has been writing for publication fr forty-five years. He and his wife Bev raised their four children in Alaska, Chicago, and Pasadena, and they now live in Monrovia, California. This is Ralph's first book for children. Read More Read Less