In Spring 1967, the Coven of Y Tylwyth Teg of Dynion Mwyn became "The Church of Y Tylwyth Teg in America." Many seekers who were Pagan and seeking an Earth-religion-oriented spiritual philosophy, became interested and joined classes. Lord Rhuddlwm initiated Lady Dana who become the first American Priestess of Dynion Mwyn and Y Tylwyth Teg. Y Tylwyth Teg presented the first pagan Gathering of the Tribes ever recorded and its first Midsummer celebration presided over by Lord Rhuddlwm and Lady Dana. Y Tylwyth Teg established sister covens in Florida, Texas, California and Georgia. The Celtic Church of Dynion Mwyn through the Church of Y Tylwyth Teg founded "The Association of Cymry Wiccae" as an assembly of Welsh Traditional Covens in America. Y Tylwyth Teg then established sister covens in California, Florida, Texas and Georgia.