Abraham Darby I

Abraham Darby, in his later life called Abraham Darby the Elder, now sometimes known for convenience as Abraham Darby I (14 April 1678 – 8 March 1717) was the first and best known of several men of that name. Born into an English Quaker family that played an important role in the Industrial Revolution, Darby developed a method of producing pig iron in a blast furnace fuelled by coke rather than charcoal. This was a major step forward in the production of iron as a raw material for the Industrial Revolution.

Early life

Abraham Darby was the son of John Darby, a yeoman farmer and locksmith by trade, and his wife Ann Baylies. He was born at Woodsettle, Woodsetton, Staffordshire, just across the county boundary from Dudley, Worcestershire. He was descended from nobility; his great-grandmother Jane was an illegitimate child of Edward Sutton, 5th Baron Dudley.[1]

Abraham's great-grandmother was a sister of the whole blood to Dud Dudley, who claimed to have smelted iron using coke as a fuel. Unfortunately, the iron that Dudley produced was not acceptable to the charcoal ironmasters.[2] However, this may have inspired his great-grandnephew Darby to perfect this novel method of smelting.

In Birmingham in the early 1690s Darby was apprenticed to Jonathan Freeth, a fellow Quaker and a manufacturer of brass mills for grinding malt.[3] Here Darby would have seen the use of coke to fuel malting ovens, preventing the sulphur content of coal contaminating the resulting beer, but also avoiding the use of the scarcer charcoal as a fuel.[4] The combination of these two insights was to lead to Darby's development of the coke-fuelled blast furnace in 1709.[5]

Freeth encouraged Darby to become a highly active member in the Society of Friends, and he remained so all his life. In 1699, when he completed his apprenticeship, he married Mary Sergeant (1678-1718) and moved to Bristol, where he set himself up as a malt mill maker.[6]


There was a small community of Quakers in Bristol, and Darby soon gained a reputation for skill and enterprise. In 1702 Darby joined a number of fellow Quakers to form the Bristol Brass Company, with works at Baptist Mills in Bristol. He brought in 'Dutchmen' to operate a brass battery work, making cooking pots and other holloware under a trip hammer.[7]

He also developed a method for casting pots in 'greensand' moulds, previously only used for smaller castings. This enabled pots to be mass-produced and to be thinner than those made by the traditional process of casting in loam moulds. For this purpose, he established the Cheese Lane Foundry in 1704. Initially he cast brass pots, but by 1705, he moved on to using iron.[8][9] A young Welsh apprentice, John Thomas,[10] solved the problem by using sand for the mould, with a special casting box and core.[11] Using this casting method Darby could cast pots of sufficient thinness and lightness. Darby took out a patent on the new casting method in 1707,[12] Darby's successors sold pots over wide areas of England and Wales, and had a virtual monopoly in the trade.[13] For this he used a reverberatory air furnace of a kind developed by Sir Clement Clerke, initially for smelting lead near Bristol, and applied by him or his son Talbot to iron founding at Vauxhall.[14]

Copper at Coalbrookdale

In 1700, another group of Bristol Quakers (including Edward Lloyd and Charles Harford) had agreed to set up a brass works 'somewhere in England'. It is not clear where, but by 1712, Caleb Lloyd, Jeffrey Pinnell, Abraham Darby and his brother-in-law Thomas Harvey had brass works at Coalbrookdale. This is likely to be linked to an increase in shipment of 'Callumy' (Calamine) up the river Severn from 1704 and Darby's agreement in 1710 to open a copper mine at Harmer Hill in Myddle, on behalf of a 'Company of the City of Bristol'. However, Darby was not a partner in establishing Tern Mill, near Tern Hall (now Attingham Park) in 1709, though his partners Thomas Harvey, Lloyd and Pinnell were.[8] At this point Darby decided to leave the brass company and concentrate on his iron founding pursuits.

Coalbrookdale furnace

Darby furnace UK
Darby's blast furnace, now part of the Coalbrookdale Museum of Iron

Darby leased the furnace in September 1708, and set to work preparing to get it into blast. His first account book, running from 20 October 1708 to 4 January 1710 survives.[15] This shows the production of 'charked' coal in January 1709 and the furnace was brought into blast on 10 January. Darby sold 81 tons of iron goods that year.[16][17]

The furnace was used for the first time on 10 January 1709 and the blast appears to have been successful. Darby was probably helped by the fact that the Shropshire 'clod coal' that he was using was fairly sulphur-free. However, experimentation with different fuels continued for some time; for example cargoes of coal were brought up the Severn from Bristol and Neath.[18] Some of the molten iron from the blast was run into pigs and sent down the Severn for use in Bristol foundries, but much of it was used to cast pots and other cast iron goods.[16][19]

The reasons why the iron produced by Darby was not used in forges to make wrought iron have been much debated. The reason may be partly that his pig iron was better for castings than charcoal pig iron, but the presence of silicon as an impurity made it an unattractive feedstock for finery forges.[20] However recent work has thrown doubt on this explanation, which is based on data from the 1720s when the Coalbrookdale Company operated a forge: the forge could hardly even make a profit with charcoal pit iron.[21]

The business was partly financed by a loan from Thomas Goldney II of Bristol and by Graffin Prankard and James Peters becoming partners. Later John Chamberlayne became a partner, and Darby's brother-in-law Thomas Baylies a manager.[22]


In 1712 Darby offered to instruct William Rawlinson, a fellow Quaker and ironmaster, in the techniques of smelting with coke.[23] Apparently, Rawlinson, the founder of the Backbarrow Iron Company in Furness,[24] did not take up the offer.

In 1714, Darby and his partners renewed their lease (effective from 1717) and then built a second blast furnace. This was slightly more productive in the 1720s than the Old Blast Furnace.[25] It is not clear when this furnace began production but it was certainly in use by 1718.[26]

The Company also secured Vale Royal Furnace in central Cheshire, but this did not come into their possession before Abraham Darby's death. Afterward, it was taken over by Thomas Baylies with other partners.[27][28]

The Company embarked on a similar venture at Dolgûn, near Dolgellau, where John Kelsall was appointed as clerk, but it is probable that the furnace there was not finished until after Darby died, when his widow and the other partners sold off their lease.[27][29]


After 18 months' illness, Abraham Darby died in 1717, at his home, Madeley Court, Madeley, Shropshire, aged 38. He had built a house for himself in Coalbrookdale but did not live to occupy it. He was buried in the Quaker burial-ground at Broseley, Shropshire. His widow died only a few months later.

New company

Darby's death left the affairs of the business in a mess. His own shares were mortgaged to Thomas Goldney, who then exchanged the debt for eight shares (of 16) in the business. Richard Ford, who married Abraham's daughter Mary had two shares and became manager, but on the widow's death Baylies took out letters of administration as a creditor and sought to sell the works. Darby’s eldest son, Abraham Darby II, was only six years old and his two brothers younger still. Accordingly, their uncle Joshua Sergeant bought back some of the shares on behalf of the Darby children. The children were sent away to school,[30] and Abraham II began assisting in the management of the works in 1728 and he was awarded four shares in the company in 1732.[31]


Abraham Darby made an important step towards the Industrial Revolution. His method of casting pots in sand provided his successors with a viable business that operated for over two centuries. Smelting iron with coke ultimately released the iron industry from the limitation imposed by the speed of growth of trees. Coke-smelted cast iron went into steam engines, bridges, and many of the inventions of the 19th century. Only with coke smelting could there be produced the great quantities of iron made to meet the requirements of the Industrial Revolution.

See also


  1. ^ Carl Higgs. "Dud Dudley and Abraham Darby: Forging New Links". Black Country Society.
  2. ^ King, P. W. (2002). "Dud Dudley's contribution to metallurgy". Historical Metallurgy. 36 (1): 43–53.
  3. ^ Trinder, Barrie Stuart (1974). The Darbys of Coalbrookdale. Phillimore. p. 13. ISBN 0-85033-191-9. Retrieved 2011-12-05.
  4. ^ Trinder, Barrie (1991) [1974]. The Darbys of Coalbrookdale. Phillimore & Co. / Ironbridge Gorge Museum Trust. p. 9. ISBN 0-85033-791-7.
  5. ^ Weissenbacher, Manfred (2009). Sources of Power: How Energy Forges Human History. Santa Barbara, CA: Praeger. p. 194. ISBN 0-313-35626-2. Retrieved 2011-11-27.
  6. ^ Cox, Nancy (1990). "Imagination and innovation of an industrial pioneer: The first Abraham Darby". Industrial Archaeology Review. 12 (2): 127–144 at 128. doi:10.1179/iar.1990.12.2.127.
  7. ^ Cox, p. 128.
  8. ^ a b Cox, 128-9.
  9. ^ Hereford Record Office, E12/VI/DFf/1-3.
  10. ^ Arthur Raistrick, Dynasty of Ironfounders: The Darbys of Coalbrookdale (Bannisdale Press, London 1953: 2 edn, Sessions Book Trust, York 1989), 20.
  11. ^ Rolt, L.T.C., "Great Engineers", 1962, G. Bell and Sons Ltd, ISBN
  12. ^ English patent, 380, dated 18 April 1707.
  13. ^ B. Trinder, The Darbys of Coalbrookdale (Phillimore, Chichester 1974), 24-5.
  14. ^ King, P. W. (2001). "Sir Clement Clerke and the adoption of coal in metallurgy". Transactions of the Newcomen Society. 73 (1): 39–40. doi:10.1179/tns.2001.002.
  15. ^ Shropshire Archives, 6001/328.
  16. ^ a b Mott, R. A. (5 Jan 1957). "The earliest use of coke for ironmaking". The Gas World, coking section supplement. 145: 7–18.
  17. ^ Raistrick, 34.
  18. ^ Cox, 131-132
  19. ^ Cox, 136-137
  20. ^ Hyde, Charles K. (1977). Technological change and the British iron industry 1700-1870. Princeton NJ. pp. 37–41.
  21. ^ King, Peter. "The choice of fuel in the eighteenth-century iron industry: the Coalbrookdale accounts reconsidered". Economic History Review. (early on-line article). doi:10.1111/j.1468-0289.2009.00517.x.
  22. ^ Cox, 131-133.
  23. ^ Chaloner, W. H. (1950). "Further light on the invention of the process of smelting iron with coke". Economic History Review, series II. 2: 185–7. doi:10.2307/2590107.
  24. ^ Fell, Alfred (1908). The early industrial history of Furness and district. Ulverston. p. 208.
  25. ^ Raistrick, 107.
  26. ^ Raistrick, 305.
  27. ^ a b King, P. W. (1993). "The Vale Royal Company and its rivals". Transactions of the Historical Society of Lancashire and Cheshire. 142: 1–18.
  28. ^ Raistrick, 43-4.
  29. ^ Raistrick, 44.
  30. ^ Raistrick, 48-51.
  31. ^ Trinder, 26

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Abraham Darby II

Abraham Darby, in his lifetime called Abraham Darby the Younger, referred to for convenience as Abraham Darby II (12 May 1711 – 31 March 1763) was the second man of that name in an English Quaker family that played an important role in the early years of the Industrial Revolution.

Abraham Darby III

Abraham Darby III (24 April 1750 – 1789) was an English ironmaster and Quaker. He was the third man of that name in several generations of an English Quaker family that played a pivotal role in the Industrial Revolution.


Broseley is a small town in Shropshire, England, with a population of 4,929 at the 2011 Census. The River Severn flows to the north and east of the town. The first iron bridge in the world was built in 1779 across the Severn, linking Broseley with Coalbrookdale and Madeley. This was part of the early industrial development in the Ironbridge Gorge, which is now part of a World Heritage Site.

Coalbrookdale Museum of Iron

The Coalbrookdale Museum of Iron is one of ten Ironbridge Gorge Museums administered by the Ironbridge Gorge Museum Trust. The museum is based in the village of Coalbrookdale in the Ironbridge Gorge, in Shropshire, England within a World Heritage Site, the birthplace of the Industrial Revolution.

Cranege brothers

Thomas and George Cranege (also spelled Cranage), who worked in the ironworking industry in England in the 1760s, are notable for introducing a new method of producing wrought iron from pig iron.

Darby Houses

The Darby Houses museum is one of ten Ironbridge Gorge Museums administered by the Ironbridge Gorge Museum Trust. It is based in the village of Coalbrookdale in the Ironbridge Gorge, in Shropshire, England within a World Heritage Site, the birthplace of the Industrial Revolution.

The Darby Houses comprise the adjacent properties of Dale House and Rosehill, both of which were built for members of the Darby family in Darby Road, Coalbrookdale.

Goldney family

The Goldney family were a wealthy English merchant trading family, most associated with Wiltshire and latterly Bristol. Later branches of the family became the Goldney baronets.


An ironmaster is the manager, and usually owner, of a forge or blast furnace for the processing of iron. It is a term mainly associated with the period of the Industrial Revolution, especially in Great Britain.

The ironmaster was usually a large scale entrepreneur and thus an important member of a community. He would have a large country house or mansion as his residence. The organization of operations surrounding the smelting, refining and casting of iron was labour-intensive, and so there would be a large number of workers reliant on the furnace works.

There were ironmasters (possibly not called such) from the 17th century onwards, but they became more prominent with the great expansion in the British iron industry during the Industrial Revolution.

March 8

March 8 is the 67th day of the year (68th in leap years) in the Gregorian calendar. There are 298 days remaining until the end of the year.

The Iron Bridge

The Iron Bridge is a bridge that crosses the River Severn in Shropshire, England. Opened in 1781, it was the first major bridge in the world to be made of cast iron, and was greatly celebrated after construction owing to its use of the new material.

In 1934 it was designated a Scheduled Ancient Monument and closed to vehicular traffic. Tolls for pedestrians were collected until 1950, when ownership of the bridge was transferred to Shropshire County Council. It now belongs to Telford and Wrekin Borough Council. The bridge, the adjacent settlement of Ironbridge and the Ironbridge Gorge form the UNESCO Ironbridge Gorge World Heritage Site. The bridge is a Grade I listed building, and a waypoint on the South Telford Heritage Trail.

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