The Welsh Chess Union was created in 1970 when it broke away from the British Chess Federation.
The background to the WCU’s break away from the BCF can be found here.
Biographies of Welsh Chess Champions (1955-1970) can be found here.
The biographies of prominent individuals during the early years of welsh chess are below.
The biography of Dr. J. Fine can be found here.
The biography of James Chapman Woods can be found here.
The biography of Major General Henry H. Lee can be found here.
The biography of Albert H. N. Reddaway can be found here.
The biography of Reverend John Pollock can be found here.
The biography of R. H. Seel can be found here.
The biography of Amabel Moseley can be found here.
The bopgraphies of three Welsh chess geniuses (Walter Marshall, Keith Peters and Brian David Josephson) can be found here.
There is also good data on Welsh Chess (particularly Newport Chess Club) on the Newport Chess Club Facebook page.