Named in honor of Rufus J. Walker, an ardent supporter of the U.S. space program and a man of exceptional kindness and gentleness. As both friend and doctor he has often made the difference in enabling the discoverer to accomplish her goals by his sincere interest and restorative qualities. As manager of medical services at the Jet Propulsion Laboratory for the past decade, he has maintained a high level of comprehensive and compassionate medical services for employees. He has introduced, staffed and enriched a broad spectrum of counseling services that have aided countless employees and their families in coping with the inherent problems of emotional stress, substance abuse and alcoholism. (M 15428) _ _.