Ralph B. Lilly, M.D., a neurologist for over half a century, suffered a traumatic brain injury in 1980 that led him to study how brain injury affects behavior. He was a clinical assistant professor with Brown University and the University of Texas and a behavioral neurologist with the Neurobehavioral Institute in The Woodlands, Texas. He focused his life's work on treating brain-injury victims and counseling their families. Until his death in 2021, he lived in Washington, Texas, with his wife, Joyce, three dogs, six cats, and two horses.