Dyfed FHS have photographs and data relating to various churches and chapels on their site
Parish registers: Christenings (1736-1975), Marriages (1756-1970) and Burials (1736-1977) are at the Carmarthenshire Record Office.
Copy ts PR index CB (1813-75) M (1756-1895) at NLW and Carm.RO
Bishops' Transcripts, covering the period (1679, 1681-4, 1697, 1729, 1731-4, 1736, 1738, 1740-5, 1747-53, 1755-81, 1783-93, 1798-9, 1805-10, 1812-16, 1818-23, 1825-31, 1833, 1835, 1837, 1843, 1854-5) are at the National Library of Wales, and have been microfilmed by the LDS.
An Index to Christenings (1813-1875), Marriages (1756-1875) and Burials (1813-1875) is available on microfiche from Dyfed FHS.
Marriage index for this parish - see Dyfed Marriages, 1813-1837, Vol. 14 - Derllys Hundred (Dyfed Family History Society, c1989)
See Bap/Mar/Bur data on FreeReg
- Rhydyceisiaid (Independent, 1707), Rhydyceisiaid Births and baptisms (1820-37) PRO RG4/4022, LDS 815972, IGI; baptisms and members in Glandwr (Llanfyrnach, Pembrokeshire) register, NLW Ms 4759Ei-ii; schedule, Mr. W. Williams, Carmarthenshire R.O. 4565; Cyfeiriadau, "The Popkin Family", Carmarthenshire Antiquary 7 (1971); membership lists, etc. in Clwydenfro Documents NLW Ms 11614E; members (1803-17) in Clwydenfro Documents NLW Ms 11076A; baptisms and burials (1785-1824) in connection with Glandwr PRO RG4/3915, LDS 813551
On Dyfed FHS Shown as still open on the Union of Welsh Independents site (Dec 2006)
Rees, Thomas & John Thomas. Hanes Eglwysi Annibynnol Cymru (History of the Welsh Independent Churches), 4 volumes (published 1871+). Here is the entry from this book for this chapel (in Welsh ) - with translation by Gareth Hicks (Dec 2008)