Hi there! I am a descendent of the Meyler family of Pembrokeshire and Carmarthenshire, and it sounds like Owen Meyler’s descendents were a Thomas family who lived in Bwlch y Gwynt. Just started to research this connection, but would love to hear from anyone who connects to this family. Owen Meyler is my 7X GGF, and he lived at Longford Farm in Llanddewi Velfrey, where he died in 1804.