US Army Lieutenant General. He served as the commander of the 14th Corps in the South Pacific Area and Southwest Pacific Area during World War II. Born Oscar Woolverton Griswold, he attended the University of Nevada at Reno, Nevada from 1905 to 1906, when he received an appointment to the US Military Academy at West Point, New York. He graduated from West Point in 1910 with a commission as a 2nd lieutenant in the Infantry. From 1914 until 1917 he served in China and during World War I he received promotions to the rank of major and lieutenant colonel, serving in the 84th Infantry Division, American Expeditionary Force from 1918 to 1919, and saw action in the Meuse-Argonne Offensive in France. In 1921 he was assigned to the US Military Academy. From 1929 to 1931 he served with the War Department General Staff, Washington DC, followed by service with the US Army Air Corps. He served as a member of the Infantry Board from 1932 to 1936, and from 1936 to 1939 was assigned to the Office, Chief of Infantry, Washington DC, during which time he was promoted to the rank of colonel. From September 1939 until October 1940, he commanded the 29th Infantry, was promoted to the rank of brigadier general, and became Commanding General of the Infantry Replacement Training Center at Camp Croft, South Carolina (now closed). In August 1941 he was promoted to the rank of major general and he became commander of the 4th Infantry Division (Mechanized). In April 1943, after the US entry into World War II, he was sent to the Pacific Theater and commanded the 14th Corps, which fought campaigns in New Georgia, Solomon Islands (Operation Cartwheel), Bougainville, Territory of New Guinea (Operation Cherry Blossom), and in the Philippines. In early 1945 he was promoted to the rank of lieutenant general and continued to serve in the Pacific theater under General Douglas MacArthur, during the battle of Manila in February 1945. Three months later, MacArthur nominated him to command the 10th US Army following the death of Lieutenant General Simon Bolivar Buckner, Jr. in the Battle of Okinawa but he was passed over in favor of General Joseph Stilwell. After World War II he served as Commanding General of the 7th US Army from June 1946 until March 1947, and then the 3rd US Army from March 1947 until April 1947. He retired as a lieutenant general in October 1947 with almost 37 years on continued military service. Among his military decorations and awards include the Army Distinguished Service Medal (with one oak leaf cluster), the Navy Distinguished Service Medal, the Legion of Merit, the Silver Star (with one oak leaf cluster), the Bronze Star, the Air Medal, and the Purple Heart. He died at the age of 72.