Craig served as a corps and division commander during World War II and was the Inspector General of the Army from 1948 to 1952.

[4] After graduating from St. Luke's, a Catholic prep school in Wayne, Pennsylvania,[2] Craig attended the United States Military Academy (USMA).

[1][5] Several of his classmates also become general officers, including William R. Schmidt, Alexander Patch, Charles H. Corlett, Willis D. Crittenberger, Paul Newgarden, Lunsford E. Oliver, Geoffrey Keyes and Henry B.

[1] In April 1917 the U.S. entered World War I, and in June Craig returned to the United States and was assigned as an instructor for the officer training camp based at Madison Barracks, New York.

[1] The battalion sailed for France in November 1917 and upon arrival in December, Craig was assigned to the 5th Field Artillery Regiment, 1st Division.

After serving as the regimental adjutant for the next three months, he was selected for attendance at the of the American Expeditionary Forces Staff College in Langres.

[1] He was then assigned as assistant professor of military science at Harvard University, where he remained until 1929, when he was selected for attendance at the United States Army Command and General Staff College.

[1] In February, 1942 Craig was promoted to brigadier general and assigned as commander of the 72nd Field Artillery Brigade at Fort Leonard Wood, Missouri.

[1] Under his command, the 9th Infantry Division conducted offensive operations in France and Belgium and crossed the Meuse River at Dinant.

[1] When the 9th Infantry Division resumed its offensive, it continued to the Ruhr Pocket and the Harz Mountains, then made contact with Soviet forces east of the Mulde River at the end of April.

[2] They were the parents of eight children – Louis Aleck; Miriam Malin; Barbara Gwynn; William Blount; Mary Faith; Francis Washington; Constance Anne; and Michael Frederick.