Heston….Miss Susan Slade
FAO ESS44 et al……If you search in the Flightglobal archive either ‘miss slade’ or ‘susan slade’ you get plenty of archive Flight magazine pages about her, and some pics….searching Heston Airport/Airfield/Aerodrome/Air Park in Getty Images or its more user friendly derivative http://www.jamd.com gives a selection of Heston pics (though none of Miss Slade,I think).
An aviation historian from Newquay gave us a talk on Susan Slade at the West Cornwall branch of Air Britain a few years ago(I think she came from Truro)….unfortunately I have no notes on the talk but I’ll drop him a note to see if he can help(he’s not on the internet)……..M West