The Presbyterian Church of Wales 
Describes their history, structure and activities.
http://www.ebcpcw.org.uk/Coleg Trefeca
[English, Welsh] Lay training and retreat center located in Brecon Beacons National Park in the historic home of Howell Harris. Site details history, museum, course offerings and news.
http://www.trefeca.org.uk/
Calvinistic Methodists
Preachers, history and biographies of what is now the Presbyterian Church of Wales.
http://www.misterrichardson.com/calvinistic.html
