Huge threads on here and Flyer Forums a couple of years ago posted by a new owner.
I lay claim to being the first person to get an Air Cadet Soaring Certificate (BGA C Certificate) there in 1965 during a detachment of 613 GS from Halton, prior to 617 GS moving in from Hendon.
I used to live in Chesham, about 3 miles away.