My father was stationed at Aldershot around 1950 with the Royal Corps of Signals, and I recall going there for a children's Christmas Party and playing games around an Airspeed Horsa, though I don't remember exactly where it was.
The record of RAF losses for 1950 shows only one Spitfire that might fit the bill: F.22 PK322 crashed at Church Crookham on 11 June after losing its tail in a mid-air collision with PK323.
Hope this helps.