This is one of the many Welsh-based traditions. It was originally founded by Gavin and Yvonne Frost in the early 1970's.
As "The Church and School of Wicca" the material is presented to students by correspondence, though the course is virtually the same as the material presented in their book The Witches Bible.
Originally (in the book) there was no mention of the Goddess at all and there were various sexual aspects which dismayed many who were otherwise drawn to the tradition.
The latter situation has recently been modified and there is now mention of the Goddess.
It is a widely spread tradition, found throughout this country and abroad.
For further information contact
The School of Wicca
P.O. Box 1502
New Bern, NC 28560
Website: http://www.wicca.org