He was from the Hirwaun area of Aberdare, Glamorgan (now Rhondda Cynon Taf), where his father worked as a refiner at Crawshay Ironworks.
His writings include contributions to a number of local and national newspapers in South Wales, including to Y Brython under the pseudonym "Eryr Craig y Llyn", the Radnorshire volume in Cambridge University Press's "County Series" (1912), Outlines of the History of the Afan Districts (1914), Ystorïau Siluria (1921), Bargodion Hanes (1924), four adventure novels (Daff Owen, Lewsyn yr Heliwr, Y Geilwad Bach and Wat Emwnt) and also musical compositions such as the hymn-tune "Cymer".
[1] Some of the papers of Lewis Davies and his son, Gwyn Lewis Davies ('Ap Lewsyn'), are in Cardiff University Library's Special Collections and Archives.
He should not be confused with Lewis Davies ('Lewis Glyn Cynon'; 1866-1953) of Merthyr Vale.
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