| Commanding General
Lt. Gen. George S. Patton, Jr. | Chaplain
Col. James H. O'Neill |
| Chief of Staff
Maj. Gen. Hugh J. Gaffey | Chemical Warfare
Col. Edward C. Wallington |
| Deputy Chief of Staff
Brig. Gen. Hobart R. Gay | Engineer
Col. John F. Conklin |
| Deputy Chief of Staff (Operations)
Col. Paul D. Harkins | Finance
Lt. Col. Charles B. Milliken |
| Assistant Chief of Staff G-1
Col. Frederick S. Matthews | Inspector General
Col. Clarence C. Park |
| Assistant Chief of Staff G-2
Col. Oscar W. Koch | Judge Advocate
Col. Charles E. Cheever |
| Assistant Chief of Staff G-3
Col. Halley G. Maddox | Medical
Col. Thomas D. Hurley |
| Assistant Chief of Staff G-4
Col. Walter J. Muller | Ordnance
Col. Thomas H. Nixon |
| Assistant Chief of Staff G-5
Col. Nicholas W. Campanole | Provost Marshal
Col. John C. MacDonald |
| Adjutant General
Col. Robert E. Cummings | Quartermaster
Col. Everett Busch |
| Antiaircraft Artillery
Col. Frederick R. Chamberlain | Signal
Col. Elton F. Hammond |
| Artillery
Col. Edward T. Williams | Special Service
Lt. Col. Kenneth E. Van Buskirk |
| Secretary of the General Staff
Maj. George R. Pfann | |