Thomas Clarkson

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For the rugby league footballer, see Thomas Clarkson (rugby league). For the American businessman and philanthropist, see Thomas S. Clarkson. For the character in the TV series Waterloo Road, see Tom Clarkson.
Thomas Clarkson
Thomas Clarkson by Carl Frederik von Breda.jpg
Thomas Clarkson by Carl Frederik von Breda, painting in the National Portrait Gallery.
Born (1760-03-28)28 March 1760
Wisbech, Cambridgeshire, England
Died 26 September 1846(1846-09-26) (aged 86)
Playford, Suffolk, England
Nationality English
Known for Abolitionism

Thomas Clarkson (28 March 1760 – 26 September 1846), was an English abolitionist, and a leading campaigner against the slave trade in the British Empire. He helped found The Society for Effecting the Abolition of the Slave Trade and helped achieve passage of the Slave Trade Act of 1807, which ended British trade in slaves. In his later years Clarkson campaigned for the abolition of slavery worldwide. In 1840, he was the key speaker at the Anti-Slavery Society (today known as Anti-Slavery International) conference in London, which campaigned to end slavery in other countries.

Early life and education[edit]

Clarkson was the son of Rev. John Clarkson (1710–1766). He attended Wisbech Grammar School where his father was headmaster; then he went on to St Paul's School in London in 1775. He did his undergraduate work at St John's College, Cambridge, beginning in 1779.[1] An excellent student, he appears to have enjoyed his time at university, although he was also a serious, devout man. He received his B.A. degree in 1783 and was set to continue at Cambridge to follow in his father's footsteps and enter the Anglican Church. He was ordained a deacon but never proceeded to priest's orders.

Revelation of the horrors of slavery[edit]

It was at Cambridge in 1785 that Clarkson entered a Latin essay competition that was to set him on the course for most of the remainder of his life. The topic of the essay, set by university vice-chancellor Peter Peckard, was Anne liceat invitos in servitutem dare (Is it lawful to enslave the unconsenting?),[2] and it led Clarkson to consider the question of the slave trade. He read everything he could on the subject, including the works of Anthony Benezet, a Quaker abolitionist. Appalled and challenged by what he discovered, Clarkson changed his life. He also researched the topic by meeting and interviewing those who had personal experience of the slave trade and of slavery.

After winning the prize, Clarkson had what he called a spiritual revelation from God as he travelled on horseback between Cambridge and London. Having broken his journey at Wadesmill, near Ware, Hertfordshire, as he stopped, "A thought came into my mind", he later wrote, "that if the contents of the Essay were true, it was time some person should see these calamities to their end" (Clarkson, History, vol. 1). This experience and sense of calling ultimately led him to devote his life to abolishing the slave trade.

Having translated the essay into English so that it could gain a wider audience, Clarkson published it in pamphlet-form in 1786 as "An essay on the slavery and commerce of the human species, particularly the African, translated from a Latin Dissertation", which was honoured with the first prize in the University of Cambridge, for the year 1785.[3]

The publication of the essay had an immediate impact, and Clarkson was introduced to many others who were sympathetic to abolition, some of whom had already published and campaigned against slavery. These included influential men such as James Ramsay and Granville Sharp, the Quakers, and other Nonconformists. The movement had been gathering strength for some years, having been founded by Quakers both in Britain and in the United States, with support from other Nonconformists or from Puritans on both sides of the Atlantic. In 1783, 300 Quakers, chiefly from the London area, presented Parliament with the first petition against the slave trade.

Following this step, a small offshoot group sought to form the Committee for the Abolition of the Slave Trade, a small non-denominational group that could lobby more successfully by incorporating Anglican and Parliamentary support (Quakers were barred from Parliament until the early nineteenth century, whereas the Anglican Church had the right to seats in the House of Lords). The twelve founding members included nine Quakers, and three pioneering Anglicans – Granville Sharp, Thomas Clarkson, and William Wilberforce — all evangelical Christians sympathetic to the religious revival that had predominantly nonconformist origins, but which sought wider non-denominational support for a "Great Awakening" amongst believers.

Anti-slavery campaign[edit]

Encouraged by publication of Clarkson's essay, an informal committee was set up between small groups from the petitioning Quakers, Clarkson and others, with the aim of lobbying Members of Parliament (MPs). This was to lead, in May 1787, to the foundation of the Committee for the Abolition of the Slave Trade. The Committee included Granville Sharp as Chairman and Josiah Wedgwood as well as Clarkson himself. Clarkson also approached the young William Wilberforce, who as an (Evangelical) Anglican and an MP could offer them a link into the British Parliament. Wilberforce was one of very few parliamentarians to have had sympathy with the Quaker petition; he had already put a question about the slave trade before the House of Commons, marking himself out as one of the earliest Anglican abolitionists.

Clarkson took a leading part in the affairs of the Committee for the Abolition of the Slave Trade, and was given the responsibility to collect evidence to support the abolition of the slave trade. He faced much opposition from supporters of the trade in some of the cities he visited. The slave traders were an influential group because the trade was a legitimate and lucrative business, generating prosperity for many of the ports. On a visit to Liverpool in 1787, the year the Committee for the Abolition of the Slave Trade was founded, Clarkson was attacked and nearly killed by a gang of sailors paid to assassinate him. He barely escaped with his life. Elsewhere, however, he gathered support. Thomas Clarkson's speech at the collegiate church in Manchester (now Manchester Cathedral) on 28 October 1787 galvanized the anti-slavery campaign in the city. That same year, Clarkson published the pamphlet: "A Summary View of the Slave Trade and of the Probable Consequences of Its Abolition".

Clarkson was very effective at giving the Committee a high public profile: he spent the next two years travelling around England, promoting the cause and gathering evidence. He interviewed 20,000 sailors during his research. He obtained equipment used on slave-ships, such as iron handcuffs, leg-shackles, and thumbscrews; instruments for forcing open slaves' jaws; and branding irons. He published engravings of the tools in pamphlets and displayed the instruments at public meetings.

Clarkson visited The Seven Stars in Bristol for research.

Clarkson's research took him to English ports such as Bristol, where he received much data from the landlord of the Seven Stars pub. (The building still stands in Thomas Lane.) He also travelled to Liverpool and London, collecting vital evidence to support the abolitionist case.

One of the first African trading ships that Clarkson visited was The Lively. Although not a slave ship, it carried cargo of high quality that had a powerful impact upon Clarkson. The ship was loaded with beautiful African goods: carved ivory and woven cloth, along with produce such as beeswax, palm oil and peppers. Clarkson could see the craftsmanship and skill required to produce many of the items. The idea that their creators could be enslaved horrified him. Clarkson bought samples from the ship and started a collection to which he added over the years. It included crops, spices and raw materials, along with refined trade goods.

Clarkson noticed how pictures and artifacts were able to influence public opinion, more than words alone. He quickly realised that his collection of fine goods could reinforce the message of his anti-slavery lectures. He used the items to demonstrate the skill of Africans and possibilities for an alternative humane trading system. The "box" of his collection became an important part his public meetings, and was an early example of a visual aid.

He rode by horseback some 35,000 miles for evidence and visited local anti-slave trade societies founded across the country. He enlisted the help of Alexander Falconbridge and James Arnold, two ship's surgeons whom he met in Liverpool. They had been on many voyages aboard slave ships, and were able to recount their experiences in detail for publication.

Clarkson also continued to write against the slave trade. He filled his works with vivid firsthand descriptions from sailors, surgeons and others who had been involved in the slave traffic. Examples included "An Essay on the Slave Trade", the account of a sailor who had served aboard a slave ship, published in 1789. In 1788 Clarkson published his Essay on the Impolicy of the African Slave Trade (1788), which was printed in large numbers. These works provided a firm basis for William Wilberforce's first abolitionist speech in the House of Commons on 12 May 1789, and its twelve propositions.

That same year an autobiographical narrative by Olaudah Equiano (Gustavus Vassa) was published; Equiano was an African with direct experience of the slave trade and slavery; his book became highly influential in the anti-slavery movement. Clarkson wrote to the Rev. Mr. Jones at Trinity College, to introduce Equiano; Clarkson also asked the Rev. Jones for assistance in selling Equiano's autobiography and helped arrange for Equiano to visit Cambridge.

In 1791 Wilberforce introduced the first Bill to abolish the slave trade; it was easily defeated by 163 votes to 88. As Wilberforce continued to bring the issue of the slave trade before Parliament, Clarkson traveled and wrote anti-slavery works.

It was the beginning of their protracted parliamentary campaign, during which Wilberforce introduced a motion in favour of abolition almost every year. Clarkson, Wilberforce and the other members of the Committee for the Abolition of the Slave Trade and their supporters, were responsible for generating and sustaining a national movement that mobilised public opinion as never before. Parliament, however, refused to pass the bill. The outbreak of War with France effectively prevented further debate for many years.

By 1794, Clarkson's health was failing, as he suffered from exhaustion. He retired from the campaign and spent some time in the Lake District, where he bought an estate at Ullswater, and became a friend of the poet William Wordsworth. In 1796 he married Catherine Buck of Bury St Edmunds, Suffolk; their only child Thomas was born in 1796. They moved back to the south of England for the sake of Catherine's health, and settled at Bury St Edmunds from 1806 to 1816, after which they lived at Playford Hall, halfway between Ipswich and Woodbridge, Suffolk.

When the war with France appeared to be almost over, Clarkson and his allies revived the anti-slave trade campaign in 1804. After ten years, he again mounted his horse to travel all over Great Britain and canvass support for the measure. He appeared to have returned with all his old enthusiasm and vigour. He was especially active in persuading MPs to back the parliamentary campaign.

After the passage of the Slave Trade Act in 1807, Clarkson's efforts were directed toward ensuring enforcement of the act and furthering the campaign in the rest of Europe. He travelled to Paris in 1814 and Aix-la-Chapelle in 1818, trying to reach international agreement on a timetable for abolition of the trade. He also published a book in 1808 about the progress of the abolition of the slave trade.[4] For Rees's Cyclopaedia he contributed the article on the Slave Trade, Vol 33, 1816.

Later career[edit]

Isaac Crewdson (Beaconite) writer Samuel Jackman Prescod - Barbadian Journalist William Morgan from Birmingham William Forster - Quaker leader George Stacey - Quaker leader William Forster - Anti-Slavery ambassador John Burnet -Abolitionist Speaker William Knibb -Missionary to Jamaica Joseph Ketley from Guyana George Thompson - UK & US abolitionist J. Harfield Tredgold - British South African (secretary) Josiah Forster - Quaker leader Samuel Gurney - the Banker's Banker Sir John Eardley-Wilmot Dr Stephen Lushington - MP and Judge Sir Thomas Fowell Buxton James Gillespie Birney - American John Beaumont George Bradburn - Massachusetts politician George William Alexander - Banker and Treasurer Benjamin Godwin - Baptist activist Vice Admiral Moorson William Taylor William Taylor John Morrison GK Prince Josiah Conder Joseph Soul James Dean (abolitionist) John Keep - Ohio fund raiser Joseph Eaton Joseph Sturge - Organiser from Birmingham James Whitehorne Joseph Marriage George Bennett Richard Allen Stafford Allen William Leatham, banker William Beaumont Sir Edward Baines - Journalist Samuel Lucas Francis August Cox Abraham Beaumont Samuel Fox, Nottingham grocer Louis Celeste Lecesne Jonathan Backhouse Samuel Bowly William Dawes - Ohio fund raiser Robert Kaye Greville - Botanist Joseph Pease, railway pioneer W.T.Blair M.M. Isambert (sic) Mary Clarkson -Thomas Clarkson's daughter in law William Tatum Saxe Bannister - Pamphleteer Richard Davis Webb - Irish Nathaniel Colver - American not known John Cropper - Most generous Liverpudlian Thomas Scales William James William Wilson Thomas Swan Edward Steane from Camberwell William Brock Edward Baldwin Jonathon Miller Capt. Charles Stuart from Jamaica Sir John Jeremie - Judge Charles Stovel - Baptist Richard Peek, ex-Sheriff of London John Sturge Elon Galusha Cyrus Pitt Grosvenor Rev. Isaac Bass Henry Sterry Peter Clare -; sec. of Literary & Phil. Soc. Manchester J.H. Johnson Thomas Price Joseph Reynolds Samuel Wheeler William Boultbee Daniel O'Connell - "The Liberator" William Fairbank John Woodmark William Smeal from Glasgow James Carlile - Irish Minister and educationalist Rev. Dr. Thomas Binney Edward Barrett - Freed slave John Howard Hinton - Baptist minister John Angell James - clergyman Joseph Cooper Dr. Richard Robert Madden - Irish Thomas Bulley Isaac Hodgson Edward Smith Sir John Bowring - diplomat and linguist John Ellis C. Edwards Lester - American writer Tapper Cadbury - Businessman not known Thomas Pinches David Turnbull - Cuban link Edward Adey Richard Barrett John Steer Henry Tuckett James Mott - American on honeymoon Robert Forster (brother of William and Josiah) Richard Rathbone John Birt Wendell Phillips - American M. L'Instant from Haiti Henry Stanton - American Prof William Adam Mrs Elizabeth Tredgold - British South African T.M. McDonnell Mrs John Beaumont Anne Knight - Feminist Elizabeth Pease - Suffragist Jacob Post - Religious writer Anne Isabella, Lady Byron - mathematician and estranged wife Amelia Opie - Novelist and poet Mrs Rawson - Sheffield campaigner Thomas Clarkson's grandson Thomas Clarkson Thomas Morgan Thomas Clarkson - main speaker George Head Head - Banker from Carlisle William Allen John Scoble Henry Beckford - emancipated slave and abolitionist Use your cursor to explore (or Click "i" to enlarge)
Clarkson is the central figure in this painting which is of the 1840 Anti-Slavery Convention.[5] Move your cursor to identify his relatives and the great and good (or click icon to enlarge).

After 1823, when the Society for the Mitigation and Gradual Abolition of Slavery (later the Anti-Slavery Society) was formed, Clarkson again travelled around the country. He covered 10,000 miles, and activated the network of sympathetic anti-slavery societies which had been formed. This resulted in 777 petitions being delivered to parliament demanding the total emancipation of slaves. When the society adopted a policy of immediate emancipation, Clarkson and Wilberforce appeared together for the last time to lend their support. In 1833 the Slavery Abolition Act was passed.

Clarkson lived for a further 13 years. Although his eyesight was failing, he continued to campaign for abolition, focusing on the United States. He was the principal speaker at the opening of the World's Anti-Slavery Convention in Freemasons' Hall, London in 1840, chaired by Thomas Binney. The conference was designed to build support for abolishing slavery worldwide and included delegates from France, the USA, Haiti and Jamaica.

The scene at Clarkson's opening address was painted in a commemorative work, now in the National Portrait Gallery, London. The emancipated slave, Henry Beckford (a Baptist deacon in Jamaica), appeared in the right foreground. Clarkson and the prominent abolitionist Quaker William Allen were to the left, the main axis of interest. In 1846 Clarkson received the American abolitionist Frederick Douglass, a former slave who had escaped to freedom, on his first visit to England.[6]

Later life[edit]

The Clarkson Memorial, Wisbech

Throughout his life Clarkson was a frequent guest of Mr Joseph Hardcastle (the first treasurer of the London Missionary Society) at Hatcham House in Deptford. Then a rural Surrey village, it is now part of inner London. Here Clarkson wrote much of his History of the Abolition of the Slave Trade (1808). Here too, in the early 1790s he had met his wife, a niece of Mrs Hardcastle.

Thomas was not the only notable member of his family. His remarkable younger brother, John Clarkson at age 28, took a major part in organising and coordinating the relocation of approximately 1200 United States ex-slaves from Nova Scotia, Canada to the new colony of Sierra Leone. There he became the first Governor and helped the settlers survive terrible conditions in the first year. John Clarkson helped the settlers move to independence, more than the Sierra Leone commercial company wanted, and they forced him to resign. John Clarkson died in 1828 in Woodbridge, Suffolk and was buried in St Mary's churchyard.

Thomas Clarkson died on 26 September 1846 in Playford, Suffolk,[7] and was buried in the village on 2 October at St Mary's Church. An obelisk to his memory was erected in the churchyard in 1857.


Clarkson's grave

After his death, a monument to Clarkson was erected in 1879, at Wadesmill, that reads: "On this spot where stands this monument in the month of June 1785 Thomas Clarkson resolved to devote his life to bringing about the abolition of the slave trade."

Another monument, the Clarkson Memorial, was erected in his birthplace of Wisbech to commemorate his life and work. The Clarkson School, Wisbech is named after him, as is Thomas Clarkson Academy. A pub in Wisbech is named the Clarkson Arms and is opposite a tree lined road named Clarkson Avenue.

In 1996 a tablet was dedicated to his memory in Westminster Abbey, near the tomb of William Wilberforce.

Several other roads in the United Kingdom are named after him, for example in Hull, the home town of William Wilberforce, Cambridge and Ipswich, Suffolk.

One of his descendants, Canon John Clarkson, continues in his footsteps as one of the leaders of the Anti-Slavery Society.[8]

Clarkson's Memorial in Playford churchyard

In the 2006 film Amazing Grace, Clarkson was played by the British actor Rufus Sewell.

After the abolition of slavery in Jamaica in 1834 and subsequent establishment of Free Villages for the settlement of newly freed slaves, the town of Clarksonville, named in his honour, established in St. Ann, Jamaica.

In July 2010 the Church of England Synod decided to honour Clarkson and Olaudah Equiano on the day that William Wilberforce is also remembered - July 30. An initial celebration was held in Playford church on July 30, 2010.[9]

Wordsworth's sonnet[edit]

The poet William Wordsworth was so impressed with Clarkson's achievements that he wrote a sonnet to him.

Sonnet, To Thomas Clarkson, On the final passing of the Bill for the Abolition of the Slave Trade, March, 1807.

Clarkson! it was an obstinate Hill to climb:
How toilsome, nay how dire it was, by Thee
Is known,—by none, perhaps, so feelingly;
But Thou, who, starting in thy fervent prime,
Didst first lead forth this pilgrimage sublime,
Hast heard the constant Voice its charge repeat,
Which, out of thy young heart's oracular seat,
First roused thee.—O true yoke-fellow of Time
With unabating effort, see, the palm
Is won, and by all Nations shall be worn!
The bloody Writing is for ever torn,
And Thou henceforth wilt have a good Man's calm,
A great Man's happiness; thy zeal shall find
Repose at length, firm Friend of human kind!
William Wordsworth

See also[edit]


  1. ^ "Clarkson, Thomas (CLRK779T2)". A Cambridge Alumni Database. University of Cambridge. 
  2. ^ The Papers of Thomas Clarkson
  3. ^ "An essay on the slavery and commerce of the human species, particularly the African, translated from a Latin Dissertation"
  4. ^ Clarkson, Thomas (1808). The History Of The Rise, Progress And Accomplishment Of The Abolition Of The Slave - Trade by the British Parliament. Philadelphia: James P. Parke. 
  5. ^ The Anti-Slavery Society Convention, 1840, Benjamin Robert Haydon, 1841, National Portrait Gallery, London, NPG599, Given by British and Foreign Anti-Slavery Society in 1880
  6. ^ Simon Schama, Rough Crossings: Britain, the Slaves, and the American Revolution, New York: HarperCollins, 2006 Pbk, p.420
  7. ^ Hugh Brogan's biography of Clarkson. (May require log in).
  8. ^ Abolition of slave trade Anti Slavery Society.
  9. ^ BBC report of the Synod decision

Further reading[edit]

  • Barker, G.F.R. "Thomas Clarkson", Dictionary of National Biography (Oxford University Press, 1887)
  • Brogan, Hugh. "Thomas Clarkson", Oxford Dictionary of National Biography (Oxford: University Press, 2005)
  • Carey, Brycchan. British Abolitionism and the Rhetoric of Sensibility: Writing, Sentiment, and Slavery, 1760-1807 (Basingstoke: Palgrave Macmillan, 2005). 131-37.
  • Hochschild, Adam. Bury the Chains, The British Struggle to Abolish Slavery (Basingstoke: Pan Macmillan, 2005)
  • Meier, Helmut. Thomas Clarkson: 'Moral Steam Engine' or False Prophet? A Critical Approach to Three of his Antislavery Essays. (Stuttgart: Ibidem, 2007).
  • Rodriguez, Junius P., ed. Encyclopedia of Emancipation and Abolition in the Transatlantic World. (Armonk, New York: M.E. Sharpe, 2007)
  • Wilson, Ellen Gibson. Thomas Clarkson: A Biography (Macmillan, 1989)
  • Zerbanoo GiffordThomas Clarkson and the Campaign Against the Slave trade - used in events marking the bi-centenary in 2007 of the abolition of the transatlantic slave trade in the British Empire

External links[edit]