United States War Dept Aeronautics
(2)
United States War Dept General Staff
(2)
United States War Dept General States
(2)
Robert J. Mitchell (EDT)/ Sewell T. Tyng (CON)/ Nelson L. Drummond (CON)/ Sewell T. Tyng (EDT)/ Nelson L. Drummond (EDT)/ United States War Dept (COR)
(1)