No, El Adem with grass has always been Marham though one summer, round about 71, 72 it was so dry that even the grass died and it was El Adem, but fortunately without the bed bugs.
PrOOne, you quote a figure of around 70 military airfields remaining in the UK, I find myself very hard put to come near that figure even including places like Upavon and Syerston.