In September 1941 , she joined the Women 's Auxiliary Air Force , working at the Department of the Chief of Air Staff as Assistant Section Officer for Intelligence duties , before being posted in July 1942 to Moreton-in-Marsh , where she was promoted to Section officer .	<arg1> she </arg1> <rel> was posted to </rel> <arg2> Moreton-in-Marsh </arg2>	1