Hi List and Hal,   I believe I directed Hal to enquiries on National Library of Wales Site regarding Rhydwilym Records. They do definitely hold them. Narberth parish Records are at Haverfordwest Pembrokeshire Archives and Llandysilio are at Carmarthenshire Archives  held in Carmarthen  Records Office. This is because Llandysilio is divided between 2 parishes namely Pembrokeshire and Carmarthenshire.   Yvonn Evans