Running out of time today ...
In brief the cave was named by Boyd Dawkins after one of his teachers, the geologist William Talbot Aveline. Distinguished guy, 1895 winner of the Murchison Medal of the Geological Society of London. Although he had no offspring relatives of his still live in Somerset and are interested in what has been found in the cave.
And according to the family it is pronounced Ayevaline and not Ahvaline as most cavers think.