TYDWEILIOG (TUDWEILIOG), a parish, in the union of PWLLHELI, partly in the hundred of COMMITMAEN, but chiefly in the hundred of
DINLLAEN, in the Lleyn division of the county of CARNARVON, NORTH WALES, 8 miles (W.) from Pwllheli; contaming 433
inhabitants. This parish, which is but of small extent, is situated on the coast of St. George's Channel, by which it is
bounded on the south; and the inhabitants carry on a considerable herring fishery. The lands are inclosed and cultivated;
and the rateable annual value is £1221. 11. 8.; the soil is in general fertile, and, except during the fishing season,
the population is wholly employed in agriculture. The living is a perpetual curacy, endowed with £1000 royal bounty; net
income, £80; patron and impropriator, Sir J. S. Piozzi Salusbury, Bart. The church is dedicated to St. Cwyvan, or,
according to some, to St. Gwynen. There is a day school, in which 65 children are educated at the expense of their
parents; and three Sunday schools gratuitously conducted by dissenters, contain about 290 males and females. William Jones
bequeathed £10, and Thomas John Morris gave a donation of £1 to the poor; the interest of which sums, together with £1,
the rent of a piece of ground, is distributed among them at Christmas.