Richard M. Leighton, who received the degree of Doctor of Philosophy in History from Cornell University, has taught in Brooklyn College, the University of Cincinnati, and George Washington University. During World War II, commissioned in the Quartermaster Corps, he was assigned to the Control Division, Headquarters, Army Service Forces, as a historical officer, and wrote various studies on the organization and administration of that command. Robert W. Coakley, who has a Ph. D. in History from the University of Virginia, has taught in that university, Tulane University, the University of Arkansas, and the Fairmont State College, West Virginia. After serving as a noncommissioned officer in Headquarters Battery, 927th Field Artillery Battalion, 102d Infantry Division, he became a member of the Historical Division of ETOUSA and USFET and wrote for that office the studies, "Organization and Command in ETO" and "Supply of the Army of Occupation." Since 1948 the authors have been members of the Logistics Section of this Office. Dr. Leighton is chief of the section.