Armstrong, Christopher. R. S. Thomas, priest of Aberdaron. The David Jones Journal, 3 (Summer / Autumn2001), 87-90.
Elliss, Wesley J. The Church of Saint Hywyn, Aberdaron. [Caernarfon] : Cymdeithas Hanes Sir Gaernarfon,  31p
Humphreys, Hugh. The celebrated Cambrian linguist, or, The history of Dick Aberdaron, who, by his natural talent and perseverance in the face of every disadvantage, worked his way until he was proficient in 35 languages! Carnarvon : Printed and sold by H. Humphreys, [1867?] 48p
Roscoe, William. Memoir of Richard Roberts Jones (Dic Aberdaron) of Aberdaron : in the county of Carnarvon, in North Wales; exhibiting a remarkable instance of a partial power and cultivation of intellect. London : Printed for T. Cadell, Strand, and J. and A. Arch, Cornhill, 1822. 50p - on google books (complete)
Taylor, Roger. Days to remember at Aberdaron. Country Quest (December 1995), p. 39-40