Jack French, a former Navy officer and retired FBI Agent, is a well-known historian of the Golden Age of Radio; his book Private Eyelashes: Radio's Lady Detectives won the Agatha Award and is available from Bear Manor Media. He is a member of the Society of Phantom Friends (a group that collects girls series books) and has written several historical articles for their journal, "The Whispered Watchword."
A month or so ago, Jack gave a presentation at the 2011 Nostalgia Convention in Maryland, on women aviators, entitled: LADY AVIATORS: In History and Popular Fiction
From the 1700s to World War II.
He very kindle allowed me to put his entire presentation on the You Fly Girl website, so check it out at: http://volcanoseven.com/YouFlyGirl/JackFrench.html