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. Fredericks 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. John C. MacDonald

Assistant Chief of Staff G-5
Col. Nicholas W. Campanole

Provost Marshal
Col. Everett Busch

Adjutant General
Col. Robert E. Cummings

Quartermaster
Col. Elton F. Hammond

Antiaircraft Artillery
Col. Frederick R. Chamberline

Signal
Col. Elton F. Hammond

Artillery
Col. Edward T. Williams

Special Service
Lt. Col. Kenneth E. Van Buskirk

Secetary of the General Staff
Maj. George R. Pfann