On February 11th 2000, I travelled with my wife and son
by train from Hastings to visit my brother Allan and his wife Draga in Milton Keynes.
My son is the lower of the two boys in the picture.
The train passed by the town of Leighton Buzzard and Fiona spoke about the obscure possible origins of that name.
On the return journey we scooped up a discarded copy of The Daily Mail in the train.
On its Quotes and Queries page we came across a letter from someone asking just this, and also the correct explanation.