Samuel Slater (June 9, 1768 – April 21, 1835) was an early English-American industrialist known as the "Father of the American Industrial Revolution", a phrase coined by Andrew Jackson, and the "Father of the American Factory System". In the United Kingdom, he was called "Slater the Traitor" and "Sam the Slate" because he brought British textile technology to the United States, modifying it for American use. He memorized the textile factory machinery designs as an apprentice to a pioneer in the British industry before migrating to the U.S. at the age of 21.
Slater designed the first textile mill in the U.S. He later went into business for himself, developing a family business with his sons. He eventually owned 13 spinning mills and developed tenant farms and company towns around them. One of these towns was Slatersville, Rhode Island.
Slater was born to William and Elizabeth Slater on June 9, 1768, in Belper, Derbyshire, England. He was the fifth son in a farming family of eight children. He received a basic education, perhaps at a school run by Thomas Jackson. At age ten, he began work at the cotton mill opened that year by Jedediah Strutt using the water frame pioneered by Richard Arkwright at nearby Cromford Mill. In 1782, his father died, and his family indentured Samuel as an apprentice to Strutt. Slater was well trained by Strutt and, by age 21, he had gained a thorough knowledge of the organization and practice of cotton spinning.
He learned of the American interest in developing similar machines, and he was also aware of British law against exporting the designs. He memorized as much as he could, and departed for New York City in 1789. Some people of Belper called him "Slater the Traitor", as they considered his move a betrayal of the town where many earned their living at Strutt's mills.
In 1789, Rhode Island–based industrialist Moses Brown moved to Pawtucket, Rhode Island, to operate a mill in partnership with his son-in-law William Almy and cousin Smith-Brown. Almy & Brown, as the company was to be called, was housed in a former fulling mill near the Pawtucket Falls of the Blackstone River. They planned to manufacture cloth for sale, with yarn to be spun on spinning wheels, jennies, and frames, using water power.
In August 1789, they acquired a 32-spindle frame "after the Arkwright pattern" but could not operate it. At this point, Slater wrote to them, offering his services. Slater realized that nothing could be done with the machinery as it stood and convinced Brown of his knowledge. He promised: "If I do not make as good yarn, as they do in England, I will have nothing for my services but will throw the whole of what I have attempted over the bridge."
In 1790, he signed a contract with Brown to replicate the British designs. Their deal provided Slater with the funds to build the water frames and associated machinery, with a half share in their capital value and the profits derived from them. Slater found no mechanics in the U.S. when he arrived and had great difficulty finding someone to build the machinery. Eventually, he located Oziel Wilkinson and his son, David, to produce iron castings and forgings for the machinery. According to David Wilkinson: "all the turning of the iron for the cotton machinery built by Mr. Slater was done with hand chisels or tools in lathes turned by cranks with hand power".
By 1791, Slater had some of the equipment operating, despite shortages of tools and skilled mechanics. He was able to single-handedly construct from memory the water-powered spinning machinery. By December, the shop was operational with ten to twelve workers. In 1793, Slater and Brown opened their first factory in Pawtucket.
Slater knew the secret of Arkwright's success, including varying fiber lengths and Arkwright's carding, drawing, and roving machines. He also had the experience of working with all the elements as a continuous production system. During construction, Slater made some adjustments to the designs to fit local needs. The result was the first successful water-powered roller spinning textile mill in the U.S.
After developing this mill, Slater instituted management principles that he had learned from Strutt and Arkwright to teach workers to be skilled mechanics. This included child labor similar to what existed in England.
In 1812, Slater built the Old Green Mill, later known as Cranston Print Works, in East Village in Webster, Massachusetts. He moved to Webster due in part to an available workforce, but also due to abundant water power from Webster Lake.
Slater created the Rhode Island System, which was a system of factory practices based upon the close-knit family life patterns in New England villages.
In contrast to England, where he had hired women and children, Slater recruited whole families, developing entire tenant farms and villages. He provided company-owned housing nearby, along with company stores; he sponsored a Sunday School where college students taught the children reading and writing.
Children aged seven to 12 were the first employees of the mill; Slater personally supervised them. The first child workers were hired in 1790. Slater also brought a Sunday school system from his native England to his textile factory at Pawtucket.
Slater constructed a new mill in 1793 for the sole purpose of textile manufacture under Almy, Brown & Slater, as he was now partners with Almy and Brown. It was a 72-spindle mill; the patenting of Eli Whitney's cotton gin in 1794 reduced the labor in processing short-staple cotton. It enabled profitable cultivation of this cotton variety, which could be grown in the interior uplands, unlike the long-staple variety of the Sea Islands and lowlands. There was a dramatic expansion of cotton cultivation throughout the Deep South in the antebellum years, especially after the 1830s Indian Removal that forced most of the Five Civilized Tribes to resettle west of the Mississippi River. The New England mills and their labor force of free men depended on southern cotton, which was based on enslaved labor by African Americans.
In 1798, Samuel Slater split from Almy and Brown, forming Samuel Slater & Company in partnership with his father-in-law, Oziel Wilkinson. They developed other mills in Connecticut, Massachusetts, New Hampshire, and Rhode Island.
In 1799, he was joined by his brother John Slater from England. John was a wheelwright who had spent time studying the latest English developments and might well have gained experience of the spinning mule. Samuel put John Slater in charge of a large mill called the White Mill.
By 1810, Slater held part ownership in three factories in Massachusetts and Rhode Island. In 1823, he bought a mill in Connecticut. He also built factories to make the textile manufacturing machinery used by many of the region's mills and formed a partnership with his brother-in-law to produce iron for use in machinery construction.