Stafford LeRoy Irwin

Stafford LeRoy Irwin was born March 23, 1893, at Fort Monroe, Virginia, the son of Major General George LeRoy Irwin and his wife Marla Elizabeth. He attended the United States Military Academy (USMA) at West Point, New York in 1911, at the age of 18. He graduated 40th in a class of 164 in June 1915 as a part of the West Point class of 1915, also known as "the class the stars fell on". Many of Irwin's classmates became general officers during World War II, including Dwight D. Eisenhower, Omar Bradley, Henry Aurand, John W. Leonard, James Van Fleet, Joseph May Swing, Charles W. Ryder, Paul J. Mueller, Roscoe B. Woodruff, Vernon Prichard, Leland Hobbs, and numerous others.[1]

He was subsequently commissioned as a second lieutenant in the Cavalry Branch of the United States Army on the same date of his graduation. Irwin subsequently served with the cavalry during the Pancho Villa Expedition, which was commanded by Brigadier General John J. Pershing, as a member of the 11th Cavalry Regiment in 1916 and the following year.[2]

During World War I he served initially with the 80th Field Artillery Regiment, and then was a student at the U.S. Army Field Artillery School at Fort Sill, Oklahoma, where he was received promotion to the temporary rank of major but saw no service overseas as the war came to an end on November 11, 1918.[3]

During the interwar period Irwin, realizing the cavalry was becoming obsolete (which trench warfare and World War I had shown), transferred to the Field Artillery Branch. From 1919 to 1920 he was Professor of Military Science and Tactics at Yale University and from 1920 to 1924 was an instructor for the Oklahoma Army National Guard. Between 1929 and 1933 he was an instructor for the U.S. Army Field Artillery School and, from 1933 to 1936 served with the Organized Reserves. He attended the U.S. Army Field Artillery School in 1926, the U.S. Army Command and General Staff School from 1926 to 1927, and the U.S. Army War College in 1937.[4]