- published: 13 Jan 2016
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Coordinates: 51°45′31″N 3°20′30″W / 51.7585°N 3.3416°W / 51.7585; -3.3416
Dowlais is a village and community of the county borough of Merthyr Tydfil, in Wales. At the 2011 census it had a population of 6,926, reducing to 4,270 at the 2011 census having excluded Pant. Dowlais is notable within Wales and Britain for its historic association with ironworking; once employing, through the Dowlais Iron Company, roughly 5,000 people, the works being the largest in the world.
The name is derived from the Welsh du meaning 'black' and glais meaning 'stream'.
Dowlais came to prominence in the 18th and 19th centuries because of its iron and steelworks. By the mid 1840s there were between 5000 and 7000 men, women and children employed in the Dowlais works. During the early to mid 1800s the ironworks were operated by Sir John Josiah Guest and (from 1833) his wife Lady Charlotte Guest. Charlotte Guest introduced welfare schemes for the ironworkers. She provided for a church and a library. The school (dating from 1819) was improved and extended, becoming "probably the most important and most progressive not only in the industrial history of South Wales, but of the whole of Britain". In the 1850s, after Sir John's death, the works became under the control of a board of trustees. In 1865 the Bessemer steel making process was introduced to Dowlais, with £33,000 being spent on a new steelworks. Steel production at Dowlais eventually ceased in 1936 due to the Great Depression.
The Dowlais Ironworks was a major ironworks and steelworks located at Dowlais near Merthyr Tydfil, in Wales. Founded in the 18th century, it operated until the end of the 20th, at one time in the 19th century being the largest steel producer in the UK. Dowlais Ironworks were the first business to license the Bessemer process, using it to produce steel in 1865.
Dowlais Ironworks was one of the four principal ironworks in Merthyr. The other three were Cyfarthfa, Plymouth, and Penydarren Ironworks.
The works was founded as a partnership on 19 September 1759. There were nine original partners including Thomas Lewis and Isaac Wilkinson. The purpose of the partnership was the:
Lewis brought to the partnership a complex system of leases that allowed the erection of a furnace and the right to mine iron ore, coal and limestone at Dowlais, Pantyrwayn and Tor-y-Fan. Wilkinson brought in his patented machine for blowing furnaces. The other partners brought in capital and various other leases and mineral rights.