WILLIAMSTON, a chapelry, in the parish of BEGELLEY, union and hundred of NARBERTH, county of PEMBROKE, SOUTH WALES, 4 miles (N.W.) from Tenby; containing 495 inhabitants. It is situated on the high road between Pembroke and Carmarthen; and the rateable annual value of property in it is £665. 17. 9.; coal is obtained. The chapel is a rude edifice, without tower or spire.