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Child labour and the Factory Acts

Under Britain’s Factory Act of 1833, no child under nine could work in a textile mill, and four inspectors were appointed to enforce the law in about 4,000 mills.

YearLawMain rules
1802Health and Morals of Apprentices ActApprentices in textile mills: no more than 12 hours a day; rarely enforced
1819Cotton Mills ActNo children under 9 in cotton mills; magistrates did not enforce it
1833Factory ActNo children under 9 in textile mills; age certificates; ages 9 to 13 no more than 9 hours a day; ages 13 to 18 no more than 12; no night work; 2 hours of school a day; 4 inspectors
1842Mines ActNo women or girls, and no boys under 10, working underground
1844Factory ActChildren under 13 no more than six and a half hours a day
1847Ten Hours ActWomen and young people under 18 in textile mills: no more than 10 hours a day

Children at work before the factories

Children had always worked. On farms they scared birds, minded animals and helped at harvest; in cottage industries they carded wool and wound yarn for their parents. What changed with the factories was the place, the pace and the hours. In a mill, a child worked away from the family, under an overseer, at the speed of a machine that did not stop. Mill owners wanted children because they were cheap, small enough to crawl under machines and nimble enough to join broken threads. Children worked as piecers, tying broken threads on spinning machines, and as scavengers, sweeping up cotton waste from under machines while they were running. Some early mills took orphans from workhouses as “apprentices”, who lived in the mill and could not leave.

The campaign for shorter hours

Early laws in 1802 and 1819 set limits but had no one to enforce them. By the 1830s the pressure for reform had grown. Campaigners compared the treatment of mill children with that of enslaved people, at the same time as Parliament was debating the abolition of slavery in the colonies (unit 5 of the exploration course). The MPs Michael Sadler and Anthony Ashley-Cooper, later Lord Shaftesbury, led the “Ten Hours” movement in Parliament, supported by workers’ committees and by some mill owners in Lancashire and Yorkshire. Sadler’s committee of 1832 took evidence from children and parents about beatings, injuries and fourteen-hour days.

The Factory Act of 1833

The Factory Act of 1833 was the first of these laws with teeth. It applied to textile mills. No child under nine could be employed, and employers had to hold a certificate of each child’s age. Children aged 9 to 13 could work no more than nine hours a day, according to the National Archives’ summary of the Act, and young people aged 13 to 18 no more than twelve. No one under 18 was to work at night. Children under 13 had to receive two hours of schooling each day. Most important, the Act created four factory inspectors, reporting to the Home Office, with power to enter mills and fine employers. Four people could not watch about 4,000 mills, and the law was widely evaded, but for the first time the state had its own officials inside the factories, and their reports are still read by historians today.

BackgroundOne of the reports kept at the National Archives is a letter from a factory inspector about a mill run by a firm called Taylor, Ibbotson and Company. Two boys told the inspector that they had started work on a Friday morning, 27 May, at six o’clock, and that apart from meal times and one extra hour at midnight they had not stopped until four o’clock on Saturday afternoon. They had worked two days and a night without going home. The inspector’s tone makes clear what he thought of the firm. The Act said that no one under 18 should work at night and that young people should work no more than twelve hours a day. The boys had broken neither rule; their employer had broken both.

Mines, and the long road after

In 1842 a Royal Commission reported on women and children in coal mines. It described children of eight, and often younger, working underground: opening and closing ventilation doors in the dark for twelve hours, or dragging tubs of coal along low tunnels with a chain around the waist. The public was shocked, and Ashley, who went down a coal mine himself, pushed the Mines Act through Parliament the same year. It banned all women and girls, and boys under ten, from working underground. Later Factory Acts cut children’s hours further, and in 1847 the Ten Hours Act limited women and young people in textile mills to ten hours a day. In the United States, the photographer Lewis Hine worked for the National Child Labor Committee from 1908, travelling the country to photograph children in mills, mines, canneries and streets. More than 5,100 of his prints are now in the Library of Congress. Hine wrote that “the object of employing children is not to train them, but to get high profits from their work.”

Sources differ on the exact daily limit for children aged 9 to 13 in the 1833 Act: the National Archives gives nine hours a day, while UK Parliament and Britannica describe a 48-hour week and eight or nine hours a day. All agree on the minimum age of nine and the four inspectors.
  • 1802: Health and Morals of Apprentices Act
  • 1819: Cotton Mills Act bans children under nine (not enforced)
  • 1832: Sadler’s committee hears evidence from mill children
  • 1833: Factory Act: minimum age nine, four inspectors
  • 1842: Mines Act bans women, girls and boys under ten underground
  • 1847: Ten Hours Act
  • 1908: Lewis Hine begins photographing for the National Child Labor Committee
PiecerChild who tied broken threads on spinning machines
ScavengerChild who swept cotton waste from under running machines
Ten Hours movementCampaign led by Sadler and Ashley to limit working hours
Factory Act 1833No children under 9 in textile mills; four inspectors
Factory inspectorGovernment official who could enter mills and fine employers
Mines Act 1842No women, girls or boys under 10 working underground
Lord ShaftesburyAnthony Ashley-Cooper, leading reformer of factory and mine laws
Lewis HineUS photographer of child labour for the NCLC from 1908
  1. Why did mill owners want child workers?
    • They were cheap, small and nimble
    • Children were stronger than adults
    • The law required it
  2. What did a piecer do?
    • Tied broken threads on spinning machines
    • Swept the mill yard
    • Kept the accounts
  3. Why did the laws of 1802 and 1819 achieve little?
    • No one enforced them
    • They applied only to adults
    • They were cancelled the next year
  4. What was the minimum working age in textile mills under the 1833 Act?
    • 9
    • 12
    • 14
  5. What made the 1833 Act different from earlier laws?
    • It created government inspectors
    • It banned all child labour
    • It covered every industry
  6. What did the Mines Act of 1842 ban?
    • Women, girls and boys under 10 working underground
    • All mining at night
    • Coal exports
  7. Who photographed child labour across the United States from 1908?
    • Lewis Hine
    • John Snow
    • Michael Sadler
  8. The two boys worked from 6 a.m. on Friday to 4 p.m. on Saturday. How many hours is that, before taking off breaks?
  9. A 48-hour week spread over six working days is how many hours a day?
  10. Four inspectors for about 4,000 mills. About how many mills per inspector?
  11. Put these laws in order, earliest first.
Key points
  • Children had always worked, but mills meant long hours at machine speed away from their families.
  • The 1833 Factory Act set a minimum age of nine in textile mills and created four inspectors.
  • The 1842 Mines Act banned women, girls and boys under ten from work underground.
  • In the US, Lewis Hine’s photographs from 1908 built the case against child labour.
Sources: The National Archives (UK), “1833 Factory Act” education resource and source 1 (inspector’s letter on Taylor, Ibbotson and Co.); UK Parliament Living Heritage, “The 1833 Factory Act” and “Coal mines”; Britannica, “Factory Act”; Royal Geographical Society, “UK child labour and education laws: a history”; Library of Congress, National Child Labor Committee collection; US National Archives, “Photographs of Lewis Hine”.
Sources for this course (20)
  • Science Museum blog, "James Watt and the separate condenser" (5 January 2019, Ben Russell) and Science Museum Group Collection records for James Watt, Rocket (co26704) and the Huskisson memorial
  • University of Glasgow, "James Watt and the Newcomen Engine"
  • Railway Museum, "Stephenson’s Rocket, Rainhill and the rise of the locomotive"
  • Science and Industry Museum, "Making the Liverpool and Manchester Railway"
  • Locomotion (Shildon)
  • "Locomotion No.1"
  • The National Archives (UK)
  • "1833 Factory Act" education resource and source 1, and "Why did the Luddites protest?"
  • UK Parliament Living Heritage, "The 1833 Factory Act" and "Coal mines"
  • Library of Congress, National Child Labor Committee collection (Lewis Hine)
  • "Ford implements the moving assembly line" and "Invention of the Telephone"
  • Smithsonian National Museum of American History, Bell experimental telephone (nmah_689864)
  • US National Archives, "Eli Whitney’s patent for the cotton gin"
  • ETHW (IEEE)
  • "Milestones: Pearl Street Station, 1882"
  • Cromford Mills (cromfordmills.org.uk)
  • NOAA Climate.gov, "Climate change: atmospheric carbon dioxide" (2025) and NOAA GML trends
  • Britannica, "Bessemer process"
  • PMC 7150208, "John Snow, cholera, the Broad Street pump"
  • Natural Earth coastlines (public domain).

Checked: 2026-10-17