(Complete Caption) Twelfth Naval District Headquarters, San Francisco, California Officers of the headquarters staff, December 1923. Those present are (front row, left to right): Captain Stanford E. Moses, USN, Assistant to the Commandant; Rear Edward Simpson, USN, Commandant, 12th Naval District; Captain George H. Barber, USN(MC), and Captain Ammen Farenholt, USN(MC). (rear row, left to right): Chief Pharmacist William T. Gildberg, USN; Lieutenant Errol W. Willet, USN(DC), (possibly); Lieutenant John H. Buchanan, USN; Lieutenant Commander John P. Bowden, USN; Lieutenant Albert H. Rooks, USN; Lieutenant Lyman K. Swenson, USN; Commander Albert S. Rees, USN, and Commander John Irwin, USN(SC). U.S. Naval History and Heritage Command Photograph.