"TREORCHY is a township forming part of the Rhondda Urban District, 10 miles north-west from Pontypridd, with a station on the Rhondda branch of the Great Western railway, and is a conventional district, formed out of the mother parish of Ystradyfodwg (now called Rhondda), 19 May, 1898; it is in the Miskin hundred, Pontypridd petty sessional division and union, rural deanery of Rhondda and archdeaconry and diocese of Llandaff.
The church of St. George, CWMPARC, situated in the centre of the village, is a modern building of stone and rubble, in the Gothic style of the 15th century, from designs by Mr. George E. Halliday, diocesan surveyor, ... The reredos is of polished pink alabaster, and the pulpit and font of green Bridgend stone: the church affords about 400 sittings. The register dates from the year 1898. The living is a vicarage, net yearly value £287, in the gift of the Bishop of Llandaff and the Board of Patronage ...
The church of St. Matthew, TREORCHY, erected in 1887, at a cost of £1800, is a small building of stone in the Early English style, ... : the church affords 280 sittings. The services are conducted in English. The living was constituted a vicarage in 1921, net yearly value £300, in the gift of the Bishop of Llandaff and the Board of Patronage, .... The church of St. Tyfodwg, Treorchy, is for Welsh services.
At Cwmparc are the collieries of the Ocean Coal Co. Limited, and at Treorchy the collieries of Messrs Burnyeat, Brown and Co. Limited. The Ocean Collieries, Park and Dare, Workmen's Institute here, opened in March, 1895, was erected by the workmen employed at Park and Dare pits (Ocean Collieries), at a cost of nearly £4000. The population of Cwmparc ecclesiastical parish in 1901 was 10,440, and in 1911, 15,265." [Kelly's South Wales Directory 1923 (ArchiveCDBooks) - transcribed by Gareth Hicks]