Abstract The William E. Warne Papers document the breadth and duration of Warne's multifaceted career as a leading federal and California state official specializing in water reclamation, water resource issues, natural resources, and international as well as domestic development; as a diplomat directing U. S. economic and technical development programs in the Middle East, in Asia, and in Latin America; as a prolific writer and researcher focusing on water reclamation and natural resources and on...