There is loads about on this but here is a talk by Oliver Gerrish a cousin of Edith it says. An interesting bit almost from the beginning is that the site was dowsed (Divined) by Edith's nephew Russell who claimed silver and gold was under the ground. Ensure that the video starts at the beginning as I had to slide the time line back a couple of minutes. https://youtu.be/jRwrtcMh7k4