My wife, who is also an ATCO and ex Heathrow, also remembers him, although she does confirm that he was somewhat "top brass" in the CAA by the time we worked there.
My friend at Gatwick does know Liz but from what he says she is now at Terminal Control which, at the moment, is still at West Drayton but soon to move to Southampton.
Have you seen the book "Heathrow ATC, The First 50 Years"? You might find it interesting.
As I said, what a small world
