Hello davek,
There are some people by the name of Loxton born in Wells in the census returns. These include Daniel Loxton, bc1781, Wells who is in the 1861 and Isaac Loxton, bc 1781 Wells, who is in the 1851.
Freereg has some baptisms for Loxton around the 1780s but they are in places as Pilton and Shepton Mallet.
I do not have access to the Parish Registers for Wells and do not think are online. Do you have their marriage details, date and place? These may give some clues.
Jo.