JEFFRESTON, a parish, in the hundred of NARBERTH, county of PEMBROKE, SOUTH WALES, 7 miles (S. by W.) from Narberth, containing 610 inhabitants. The village is pleasantly situated on a well-wooded eminence, and forms a conspicuous and interesting feature in the views from the adjacent parts of the country. Near the turnpike road from Narberth to Pembroke, which passes through the parish, and about halfrway between Creswell-Quay and the church, is Cresselly, the seat of I. H. Allen, Esq., surrounded with luxuriant plantations. The substrata of the soil of this parish are stone coal and culm, which have been wrought to a very great extent, and still continue to be procured, though on a smaller scale. The mines are thought to be nearly exhausted, but it is probable that, by carrying the shaft to a greater depth, an abundant supply might still be obtained. The coal is shipped at Creswell Quay, in a branch of Milford Haven extending for more than a mile and a half to the south, and partly in this parish, for the coast of Sussex, in vessels of about eighty tons' burden. The living is a vicarage, in the archdeaconry and diocese of St. David's, rated in the king's books at £4. 17. 6., endowed with £200 private benefaction, £600 royal bounty, and £1000 parliamentary grant, and in the patronage of the Chapter of St. David's. The church, dedicated to St. Jeffry and St. Oswald, is not distinguished by any remarkable architectural features. The average annual expenditure for the maintenance of the poor is £231.5.