After the end of the Great War, this wheel chart shows the varied and extensive interest of Radio Section.
Dr. Crittenden, as Division Chief, Dr. Kolster at Section Chief of Radio Development, Dr. Dellinger as Section Chief of Radio Research and Testing and Dr. Austin as Guest Researcher for both.
But not for long, Dr. Kolster moved on and Francis Dunmore took an active role in the Radio Section for the next 31 years.