The Peterloo Massacre took place at St Peter's Field, Manchester, England, on 16 August 1819, when cavalry charged into a crowd of 60,000–80,000 who had gathered to demand the reform of parliamentary representation.
|Part of the history of Manchester|
A coloured print of the Peterloo Massacre published by Richard Carlile
|Location||St Peter's Field, Manchester, England|
|Date||16 August 1819|
|Perpetrators||Manchester and Salford Yeomanry|
Manchester Special Constabulary
British Army Regulars
The end of the Napoleonic Wars in 1815 had resulted in periods of famine and chronic unemployment, exacerbated by the introduction of the first of the Corn Laws. By the beginning of 1819, the pressure generated by poor economic conditions, coupled with the relative lack of suffrage in Northern England, had enhanced the appeal of political radicalism. In response, the Manchester Patriotic Union, a group agitating for parliamentary reform, organised a demonstration to be addressed by the well-known radical orator Henry Hunt.
Shortly after the meeting began, local magistrates called on the Manchester and Salford Yeomanry to arrest Hunt and several others on the hustings with him. The Yeomanry charged into the crowd, knocking down a woman and killing a child, and finally apprehending Hunt. The 15th Hussars were then summoned by the magistrate, Mr Hulton, to disperse the crowd. They charged with sabres drawn, and in the ensuing confusion, 15 people were killed and 400–700 were injured. The massacre was given the name Peterloo in an ironic comparison to the Battle of Waterloo, which had taken place four years earlier.
Historian Robert Poole has called the Peterloo Massacre one of the defining moments of its age. In its own time, the London and national papers shared the horror felt in the Manchester region, but Peterloo's immediate effect was to cause the government to crack down on reform, with the passing of what became known as the Six Acts. It also led directly to the foundation of the Manchester Guardian, but had little other effect on the pace of reform. In a survey conducted by The Guardian in 2006, Peterloo came second to the Putney Debates as the event from radical British history that most deserved a proper monument or a memorial. Peterloo is commemorated by a plaque close to the site, a replacement for an earlier one that was criticised as being inadequate as it did not reflect the scale of the massacre.
In 1819, Lancashire was represented by two members of parliament (MPs). Voting was restricted to the adult male owners of freehold land with an annual rental value of 40 shillings (£2) or more – the equivalent of about £80 in 2008 – and votes could only be cast at the county town of Lancaster, by a public spoken declaration at the hustings. Constituency boundaries were out of date, and the so-called rotten boroughs had a hugely disproportionate influence on the membership of the Parliament of the United Kingdom compared to the size of their populations: Old Sarum in Wiltshire, with one voter, elected two MPs, as did Dunwich in Suffolk, which by the early 19th century had almost completely disappeared into the sea. The major urban centres of Manchester, Salford, Bolton, Blackburn, Rochdale, Ashton-under-Lyne, Oldham and Stockport, with a combined population of almost one million, were represented by either the two county MPs for Lancashire, or the two for Cheshire in the case of Stockport. By comparison, more than half of all MPs were returned by a total of just 154 owners of rotten or closed boroughs. In 1816, Thomas Oldfield's The Representative History of Great Britain and Ireland; being a History of the House of Commons, and of the Counties, Cities, and Boroughs of the United Kingdom from the earliest Period claimed that of the 515 MPs for England and Wales 351 were returned by the patronage of 177 individuals and a further 16 by the direct patronage of the government: all 45 Scottish MPs owed their seats to patronage. These inequalities in political representation led to calls for reform.
After the end of the Napoleonic Wars in 1815, a brief boom in textile manufacture was followed by periods of chronic economic depression, particularly among textile weavers and spinners (the textile trade was concentrated in Lancashire). Weavers who could have expected to earn 15 shillings for a six-day week in 1803, saw their wages cut to 5 shillings or even 4s 6d by 1818. The industrialists, who were cutting wages without offering relief, blamed market forces generated by the aftershocks of the Napoleonic Wars. Exacerbating matters were the Corn Laws, the first of which was passed in 1815, imposing a tariff on foreign grain in an effort to protect English grain producers. The cost of food rose as people were forced to buy the more expensive and lower quality British grain, and periods of famine and chronic unemployment ensued, increasing the desire for political reform both in Lancashire and in the country at large.
Radical mass meetings in ManchesterEdit
Economic conditions in 1817 led to a group who became known as Blanketeers to organise a march from Manchester to London so they could petition the Prince Regent for parliamentary reform. A crowd of 25,000 including 5,000 men who intended to march gathered in St Peter's Fields. After the magistrates read the Riot Act, the crowd was dispersed by the King's Dragoon Guards. The ringleaders were arrested and subsequently released when serious charges against them were not forthcoming. In April 1819 three leading Blanketeers were convicted of sedition and conspiracy when witnesses alleged they had advocated the principal towns of the kingdom should elect representatives to a National Convention to demand their rights and if refused enforce them 'sword in hand' during a meeting in Stockport in September 1818.
By the beginning of 1819 pressure generated by poor economic conditions was at its peak and had enhanced the appeal of political radicalism among the cotton loom weavers of south Lancashire. In January 1819, a crowd of about 10,000 gathered at St Peter's Fields to hear the radical orator Henry Hunt and called on the Prince Regent to choose ministers who would repeal the Corn Laws. The meeting, conducted in the presence of the cavalry, passed off without incident.
In July 1819, the town's magistrates wrote to Lord Sidmouth warning they thought a 'general rising' was imminent, the "deep distress of the manufacturing classes" was being worked on by the "unbounded liberty of the press" and "the harangues of a few desperate demagogues" at weekly meetings. "Possessing no power to prevent the meetings" the magistrates admitted they were at a loss as to how to stem the doctrines being disseminated.:1–3
Against this background, a "great assembly" was organised by the Manchester Patriotic Union formed by radicals from the Manchester Observer. The newspaper's founder Joseph Johnson was the union's secretary. He wrote to Henry Hunt asking him to chair a meeting in Manchester on 2 August 1819. Johnson wrote:
Nothing but ruin and starvation stare one in the face [in the streets of Manchester and the surrounding towns], the state of this district is truly dreadful, and I believe nothing but the greatest exertions can prevent an insurrection. Oh, that you in London were prepared for it.
Unknown to Johnson and Hunt, the letter was intercepted by government spies and copied before being sent to its destination. The contents were interpreted to mean that an insurrection was being planned, and the government responded by ordering the 15th Hussars to Manchester.
The mass public meeting planned for 2 August was delayed until 9 August. The Manchester Observer reported it was called "to take into consideration the most speedy and effectual mode of obtaining Radical reform in the Common House of Parliament" and "to consider the propriety of the 'Unrepresented Inhabitants of Manchester' electing a person to represent them in Parliament". The magistrates, led by William Hulton, had been advised by the acting Home Secretary, Henry Hobhouse, that "the election of a member of parliament without the King's writ" was a serious misdemeanour, encouraging them to declare the assembly illegal as soon as it was announced on 31 July. The radicals sought a second opinion on the meeting's legality which was that "The intention of choosing Representatives, contrary to the existing law, tends greatly to render the proposed Meeting seditious; under those circumstances it would be deemed justifiable in the Magistrates to prevent such Meeting.":23
On 3 August, Hobhouse conveyed the view of the Attorney-General that the magistrates were incorrect to declare 9 August meeting illegal as it was called to consider the election of a representative and it was not the intention to elect an MP that was illegal, but the execution of that intention. On 4 August Hobhouse advised against any attempt to forcibly prevent the 9 August meeting if it went ahead, or do anything beyond collecting evidence for subsequent prosecution unless the meeting got out of hand:
even if they should utter sedition or proceed to the election of a representative Lord Sidmouth is of opinion that it will be the wisest course to abstain from any endeavour to disperse the mob, unless they should proceed to acts of felony or riot. We have the strongest reason to believe that Hunt means to preside and to deprecate disorder.
The meeting on 9 August was postponed after magistrates banned it to discourage the radicals but Hunt and his followers were determined to assemble and a meeting was organised for 16 August, with its declared aim solely "to consider the propriety of adopting the most LEGAL and EFFECTUAL means of obtaining a reform in the Common House of Parliament".:23 The press had mocked earlier meetings of working men because of their ragged, dirty appearance and disorganised conduct, but the organisers were determined that those attending the St Peter's Field meeting would be neatly turned out and march to the event in good order. Samuel Bamford, a local radical who led the Middleton contingent, wrote that "It was deemed expedient that this meeting should be as morally effective as possible, and, that it should exhibit a spectacle such as had never before been witnessed in England." Instructions were given to the various committees forming the contingents that "Cleanliness, Sobriety, Order and Peace" and a "prohibition of all weapons of offence or defence" were to be observed throughout the demonstration. Each contingent was drilled and rehearsed in the fields of the townships around Manchester adding to the concerns of the authorities. A royal proclamation forbidding the practice of drilling had been posted in Manchester on 3 August but on 9 August an informant reported to Rochdale magistrates that at Tandle Hill the previous day, 700 men were "drilling in companies" and "going through the usual evolutions of a regiment" and an onlooker had said the men "were fit to contend with any regular troops, only they wanted arms":33
sent to St Peter's Field
Use a cursor to explore this imagemap.
St Peter's Field was a croft (an open piece of land) alongside Mount Street which was being cleared to enable the last section of Peter Street to be constructed. Piles of brushwood had been placed at the end of the field nearest to the Friends Meeting House, but the remainder of the field was clear. Thomas Worrell, Manchester's Assistant Surveyor of Paving, arrived to inspect the field at 7:00 am. His job was to remove anything that might be used as a weapon, and he duly had "about a quarter of a load" of stones carted away.
Monday, 16 August 1819, was a hot summer's day, with a cloudless blue sky. The fine weather almost certainly increased the size of the crowd significantly; marching from the outer townships in the cold and rain would have been a much less attractive prospect.
The Manchester magistrates met at 9:00 am, to breakfast at the Star Inn on Deansgate and to consider what action they should take on Henry Hunt's arrival at the meeting. By 10:30 am they had come to no conclusions, and moved to a house on the southeastern corner of St Peter's Field, from where they planned to observe the meeting. They were concerned that it would end in a riot, or even a rebellion, and had arranged for a substantial number of regular troops and militia yeomanry to be deployed. The military presence comprised 600 men of the 15th Hussars; several hundred infantrymen; a Royal Horse Artillery unit with two six-pounder guns; 400 men of the Cheshire Yeomanry; 400 special constables; and 120 cavalry of the Manchester and Salford Yeomanry. The Manchester & Salford Yeomanry were relatively inexperienced militia recruited from among local shopkeepers and tradesmen, the most numerous of which were publicans. Recently mocked by the Manchester Observer as "generally speaking, the fawning dependents of the great, with a few fools and a greater proportion of coxcombs, who imagine they acquire considerable importance by wearing regimentals, they were subsequently variously described as "younger members of the Tory party in arms", and as "hot-headed young men, who had volunteered into that service from their intense hatred of Radicalism." Socialist writer Mark Krantz has described them as "the local business mafia on horseback". R J White described them as "exclusively cheesemongers, ironmongers and newly enriched manufacturers, (who) the people of Manchester .. thought .. a joke." 
The British Army in the north was under the overall command of General Sir John Byng. When he had initially learned that the meeting was scheduled for 2 August he wrote to the Home Office stating that he hoped the Manchester magistrates would show firmness on the day:
I will be prepared to go there, and will have in that neighbourhood, that is within an easy day's march, 8 squadron of cavalry, 18 companies of infantry and the guns. I am sure I can add to the Yeomanry if requisite. I hope therefore the civil authorities will not be deterred from doing their duty.
The revised meeting date of 16 August, however, coincided with his visit to the horse races at York, a fashionable event at which Byng had entries in two races. He once again wrote to the Home Office, saying that although he would still be prepared to be in command in Manchester on the day of the meeting if it was thought really necessary, he had absolute confidence in his deputy commander, Lieutenant Colonel Guy L'Estrange.
The crowd that gathered in St Peter's Field arrived in disciplined and organised contingents. Each village or chapelry was given a time and a place to meet, from where its members were to proceed to assembly points in the larger towns or townships, and from there on to Manchester. Contingents were sent from all around the region, the largest and "best dressed" of which was a group of 10,000 who had travelled from Oldham Green, comprising people from Oldham, Royton (which included a sizeable female section), Crompton, Lees, Saddleworth and Mossley. Other sizeable contingents marched from Middleton and Rochdale (6,000 strong) and Stockport (1,500–5,000 strong). Reports of the size of the crowd at the meeting vary substantially. Contemporaries estimated it from 30,000 to as many as 150,000; modern estimates are 60,000–80,000. Scholar Joyce Marlow describes the event as "The most numerous meeting that ever took place in Great Britain" and elaborates that the generally accepted figure of 60,000 would have been six per cent of the population of Lancashire, or half the population of the immediate area around Manchester.
On the bank of an open field on our left I perceived a gentleman observing us attentively. He beckoned me, and I went to him. He was one of my late employers. He took my hand, and rather concernedly, but kindly, said he hoped no harm was intended by all those people who were coming in. I said "I would pledge my life for their entire peaceableness." I asked him to notice them, "did they look like persons wishing to outrage the law? were they not, on the contrary, evidently heads of decent working families? or members of such families?" "No, no," I said, "my dear sir, and old respected master, if any wrong or violence take place, they will be committed by men of a different stamp from these." He said he was very glad to hear me say so; he was happy he had seen me, and gratified by the manner in which I had expressed myself. I asked, did he think we should be interrupted at the meeting? he said he did not believe we should; "then," I replied, "all will be well"; and shaking hands, with mutual good wishes, I left him, and took my station as before.
Although some observers, like the Rev. W. R. Hay, chairman of the Salford Quarter Sessions, claimed that "The active part of the meeting may be said to have come in wholly from the country", others such as John Shuttleworth, a local cotton manufacturer, estimated that most were from Manchester, a view that would subsequently be supported by the casualty lists. Of the casualties whose residence was recorded, sixty-one per cent lived within a three-mile radius of the centre of Manchester. Some groups carried banners with texts like "No Corn Laws", "Annual Parliaments", "Universal suffrage" and "Vote By Ballot". The first female reform societies were established in the textile areas in 1819 and women from the Manchester Female Reform Society, dressed in white, accompanied Hunt to the platform. The society's president Mary Fildes rode in Hunt's carriage carrying its flag. The only banner known to have survived is in Middleton Public Library; it was carried by Thomas Redford, who was injured by a yeomanry sabre. Made of green silk embossed with gold lettering, one side of the banner is inscribed "Liberty and Fraternity" and the other "Unity and Strength."
At about noon, several hundred special constables were led onto the field. They formed two lines in the crowd a few yards apart, in an attempt to form a corridor through the crowd between the house where the magistrates were watching and the hustings, two wagons lashed together. Believing that this might be intended as the route by which the magistrates would later send their representatives to arrest the speakers, some members of the crowd pushed the wagons away from the constables, and pressed around the hustings to form a human barrier.
Hunt's carriage arrived at the meeting shortly after 1:00 pm, and he made his way to the hustings. Alongside Hunt on the speakers' stand were John Knight, a cotton manufacturer and reformer, Joseph Johnson, the organiser of the meeting, John Thacker Saxton, managing editor of the Manchester Observer, the publisher Richard Carlile, and George Swift, reformer and shoemaker. There were also a number of reporters, including John Tyas of The Times, John Smith of the Liverpool Mercury and Edward Baines Jr, the son of the editor of the Leeds Mercury. By this time St Peter's Field, an area of 14,000 square yards (11,700 m2), was packed with tens of thousands of men, women and children. The crowd around the speakers was so dense that "their hats seemed to touch"; large groups of curious spectators gathered on the outskirts of the crowd. The rest of Manchester was like a ghost town, the streets and shops were empty.
— William Hulton
William Hulton, the chairman of the magistrates watching from the house on the edge of St Peter's Field, saw the enthusiastic reception that Hunt received on his arrival at the assembly, and it encouraged him to action. He issued an arrest warrant for Henry Hunt, Joseph Johnson, John Knight, and James Moorhouse. On being handed the warrant the Constable, Jonathan Andrews, offered his opinion that the press of the crowd surrounding the hustings would make military assistance necessary for its execution. Hulton then wrote two letters, one to Major Thomas Trafford, the commanding officer of the Manchester and Salford Yeomanry Cavalry, and the other to the overall military commander in Manchester, Lieutenant Colonel Guy L'Estrange. The contents of both notes were similar:
Sir, as chairman of the select committee of magistrates, I request you to proceed immediately to no. 6 Mount Street, where the magistrates are assembled. They consider the Civil Power wholly inadequate to preserve the peace. I have the honour, & c. Wm. Hulton.— Letter sent by William Hulton to Major Trafford of the Manchester and Salford Yeomanry Cavalry
The notes were handed to two horsemen who were standing by. The Manchester and Salford Yeomanry were stationed just a short distance away in Portland Street, and so received their note first. They immediately drew their swords and galloped towards St Peter's Field. One trooper, in a frantic attempt to catch up, knocked down a woman in Cooper Street, causing the death of her son when he was thrown from her arms; two-year-old William Fildes was the first casualty of Peterloo.
Sixty cavalrymen of the Manchester and Salford Yeomanry, led by Captain Hugh Hornby Birley, a local factory owner, arrived at the house from where the magistrates were watching; some reports allege that they were drunk. Andrews, the Chief Constable, instructed Birley that he had an arrest warrant which he needed assistance to execute. Birley was asked to take his cavalry to the hustings to allow the speakers to be removed; it was by then about 1:40 pm.
The route towards the hustings between the special constables was narrow, and as the inexperienced horses were thrust further and further into the crowd they reared and plunged as people tried to get out of their way. The arrest warrant had been given to the Deputy Constable, Joseph Nadin, who followed behind the yeomanry. As the cavalry pushed towards the speakers' stand they became stuck in the crowd, and in panic started to hack about them with their sabres. On his arrival at the stand Nadin arrested Hunt, Johnson and a number of others including John Tyas, the reporter from The Times. Their mission to execute the arrest warrant having been achieved, the yeomanry set about destroying the banners and flags on the stand. According to Tyas, the yeomanry then attempted to reach flags in the crowd "cutting most indiscriminately to the right and to the left to get at them" – only then (said Tyas) were brickbats thrown at the military: "From this point the Manchester and Salford Yeomanry lost all command of temper". From his vantage point William Hulton perceived the unfolding events as an assault on the yeomanry, and on L'Estrange's arrival at 1:50 pm, at the head of his hussars, he ordered them into the field to disperse the crowd with the words: "Good God, Sir, don't you see they are attacking the Yeomanry; disperse the meeting!" The 15th Hussars formed themselves into a line stretching across the eastern end of St Peter's Field, and charged into the crowd. At about the same time the Cheshire Yeomanry charged from the southern edge of the field. At first the crowd had some difficulty in dispersing, as the main exit route into Peter Street was blocked by the 88th Regiment of Foot, standing with bayonets fixed. One officer of the 15th Hussars was heard trying to restrain the by now out of control Manchester and Salford Yeomanry, who were "cutting at every one they could reach": "For shame! For shame! Gentlemen: forbear, forbear! The people cannot get away!"
On the other hand Lieutenant Jolliffe of the 15th Hussars said "It was then for the first time that I saw the Manchester troop of Yeomanry; they were scattered singly or in small groups over the greater part of the Field, literally hemmed up and powerless either to make an impression or to escape; in fact, they were in the power of those whom they were designed to overawe and it required only a glance to discover their helpless position, and the necessity of our being brought to their rescue"  Further Jolliffe asserted that ".. nine out of ten of the sabre wounds were caused by the Hussars ... however, the far greater amount of injuries were from the pressure of the routed multitude." 
Within ten minutes the crowd had been dispersed, at the cost of eleven dead and more than six hundred injured. Only the wounded, their helpers, and the dead were left behind; a woman living nearby said she saw "a very great deal of blood." For some time afterwards there was rioting in the streets, most seriously at New Cross, where troops fired on a crowd attacking a shop belonging to someone rumoured to have taken one of the women reformers' flags as a souvenir. Peace was not restored in Manchester until the next morning, and in Stockport and Macclesfield rioting continued on the 17th. There was also a major riot in Oldham that day, during which one person was shot and wounded.
The exact number of those killed and injured at Peterloo has never been established with certainty. Sources claim 11–15 killed and 400–700 injured. The Manchester Relief Committee, a body set up to provide relief for the victims of Peterloo, gave the number of injured as 420, while Radical sources listed 500. The true number is difficult to estimate, as many of the wounded hid their injuries for fear of retribution by the authorities. Three of William Marsh's six children worked in the factory belonging to Captain Hugh Birley of the Manchester Yeomanry, and lost their jobs because their father had attended the meeting. James Lees was admitted to Manchester Infirmary with two severe sabre wounds to the head, but was refused treatment and sent home after refusing to agree with the surgeon's insistence that "he had had enough of Manchester meetings."
A particular feature of the meeting at Peterloo was the number of women present. Female reform societies had been formed in North West England during June and July 1819, the first in Britain. Many of the women were dressed distinctively in white, and some formed all-female contingents, carrying their own flags. Of the 654 recorded casualties, at least 168 were women, four of whom died either at St Peter's Field or later as a result of their wounds. It has been estimated that less than 12 per cent of the crowd was made up of women, suggesting that they were at significantly greater risk of injury than men by a factor of almost 3:1. Richard Carlile claimed that the women were especially targeted, a view apparently supported by the large number who suffered from wounds caused by weapons.
Eleven of the fatalities listed occurred on St Peter's Field. Others, such as John Lees of Oldham, died later of their wounds, and some like Joshua Whitworth were killed in the rioting that followed the crowd's dispersal from the field.
|Name||Abode||Date of death||Cause||Notes||Ref(s).|
|John Ashton||Cowhill, Chadderton||16 August||Sabred and trampled on by crowd||Carried the black flag of the Saddleworth, Lees and Mossley Union, inscribed "Taxation without representation is unjust and tyrannical. NO CORN LAWS". The inquest jury returned a verdict of accidental death. His son, Samuel, received 20 shillings in relief.|||
|John Ashworth||Bulls Head, Manchester||Sabred and trampled||Ashworth was a Special Constable, presumably attacked unintentionally by the cavalry.|||
|William Bradshaw||Lily-hill, Bury||Shot by musket||[a]|
|Thomas Buckley||Baretrees, Chadderton||Sabred and stabbed by bayonet|||
|Robert Campbell||Miller Street, Salford||18 August||Killed by a mob in Newton Lane||Campbell was a Special Constable|||
|James Crompton||Barton-upon-Irwell||Trampled on by the cavalry||Buried 1 September|||
|Edmund Dawson[b]||Saddleworth||Died of sabre wounds at the Manchester Royal Infirmary.|||
|William Dawson[b]||Saddleworth||Sabred, crushed and killed on the spot|||
|William Evans||Hulme||Trampled by cavalry||Evans was a Special Constable.|||
|William Fildes||Kennedy St, Manchester||16 August||Ridden over by cavalry||Two years old, he was first victim of the massacre. His mother was carrying him across the road when she was struck by a trooper of the Manchester Yeomanry, galloping towards St Peters Field.|||
|Mary Heys||Oxford Rd, Manchester||17 December||Ridden over by cavalry||Mother of six children, and pregnant at the time of the meeting. Disabled and suffering from almost daily fits following her injuries, the premature birth of her seven-month-old child resulted in her death.|||
|Sarah Jones||96 Silk St, Salford||No cause given by Marlow but listed as "bruised in the head" by Frow.||Mother of seven children. Beaten on the head by a Special Constable's truncheon.||[c]|
|John Lees||Oldham||9 September||Sabred||Lees was an ex-soldier who had fought in the Battle of Waterloo.|||
|Arthur Neil||Pidgeon St, Manchester||Inwardly crushed|||
|Martha Partington||Eccles||Thrown into a cellar and killed on the spot|||
|John Rhodes||Pits, Hopwood||18 or 19 November||Sabre wound to the head||Rhodes's body was dissected by order of magistrates who wished to prove that his death was not a result of Peterloo. The coroner's inquest found that he had died from natural causes.|||
|Joshua Whitworth||20 August||Shot at New Cross|||
Reaction and aftermathEdit
Just published No. 1 price twopence of PETER LOO MASSACRE Containing a full, true and faithful account of the inhuman murders, woundings and other monstous Cruelties exercised by a set of INFERNALS (miscalled Soldiers) upon unarmed and distressed People.
|— 28 August 1819, Manchester Observer|
|As the 'Peterloo Massacre' cannot be otherwise than grossly libellous you will probably deem it right to proceed by arresting the publishers.|
|— 25 August 1819, Letter from the Home Office to Magistrate James Norris|
The Peterloo Massacre has been called one of the defining moments of its age. Many of those present at the massacre, including local masters, employers and owners, were horrified by the carnage. One of the casualties, Oldham cloth-worker and ex-soldier John Lees, who died from his wounds on 9 September, had been present at the Battle of Waterloo. Shortly before his death he said to a friend that he had never been in such danger as at Peterloo: "At Waterloo there was man to man but there it was downright murder." When news of the massacre began to spread, the population of Manchester and surrounding districts was horrified and outraged.
After the events at Peterloo, many commemorative items such as plates, jugs, handkerchiefs and medals were produced; they were carried by radical supporters and may also have been sold to raise money for the injured. The People's History Museum in Manchester has one of these Peterloo handkerchiefs on display. All the mementos carried the iconic image of Peterloo; cavalrymen with swords drawn riding down and slashing at defenceless civilians. The reverse of the Peterloo medal carried a Biblical text:
The wicked have drawn out the sword, they have cast down the poor and needy and such as be of upright conversation.
Peterloo was the first public meeting at which journalists from important, distant newspapers were present and within a day or so of the event, accounts were published in London, Leeds and Liverpool. The London and national papers shared the horror felt in the Manchester region, and the feeling of indignation throughout the country became intense. James Wroe, editor of the Manchester Observer was the first to describe the incident as the "Peterloo Massacre", coining his headline by combining St Peter's Field with the Battle of Waterloo that had taken place four years earlier. He also wrote pamphlets entitled "The Peterloo Massacre: A Faithful Narrative of the Events". Priced at 2d each, they sold out every print run for 14 weeks and had a large national circulation. Sir Francis Burdett, a reformist MP, was jailed for three months for publishing a seditious libel.
Percy Bysshe Shelley was in Italy and did not hear of the massacre until 5 September. His poem, The Masque of Anarchy, subtitled Written on the Occasion of the Massacre at Manchester was sent for publication in the radical periodical The Examiner but because of restrictions on the radical press, was not published until 1832, ten years after the poet's death.
The immediate effect of Peterloo was a crackdown on reform. The government instructed the police and courts to go after the journalists, presses and publication of the Manchester Observer. Wroe was arrested and charged with producing a seditious publication. Found guilty he was sentenced to twelve months in prison and fined £100. Outstanding court cases against the Manchester Observer were rushed through the courts and a continual change of sub-editors was not sufficient defence against a series of police raids, often on the suspicion that someone was writing a radical article. The Manchester Observer closed in February 1820.
Hunt and eight others were tried at York Assizes on 16 March 1820, charged with sedition. After a two-week trial, five defendants were found guilty. Hunt was sentenced to 30 months in Ilchester Gaol; Bamford, Johnson, and Healey were given one year each, and Knight was jailed for two years on a subsequent charge. A civil case on behalf of a weaver wounded at Peterloo was brought against four members of the Manchester Yeomanry, Captain Birley, Captain Withington, Trumpeter Meagher, and Private Oliver, at Lancaster Assizes, on 4 April 1822. All were acquitted, as the court ruled their actions had been justified to disperse an illegal gathering.
The government declared its support for the actions taken by the magistrates and the army. The Manchester magistrates held a supposedly public meeting on 19 August, so that resolutions supporting the action they had taken three days before could be published. Cotton merchants Archibald Prentice (later editor of The Manchester Times) and Absalom Watkin (a later corn-law reformer), both members of the Little Circle, organised a petition of protest against the violence at St Peter's Field and the validity of the magistrate's meeting. Within a few days it had collected 4,800 signatures. Nevertheless, the Home Secretary, Lord Sidmouth, on 27 August conveyed to the magistrates the thanks of the Prince Regent for their action in the "preservation of the public peace." That public exoneration was met with fierce anger and criticism. During a debate at Hopkins Street Robert Wedderburn declared "The Prince is a fool with his Wonderful letters of thanks ... What is the Prince Regent or King to us, we want no King – he is no use to us." In an open letter, Richard Carlile said:
Unless the Prince calls his ministers to account and relieved his people, he would surely be deposed and make them all REPUBLICANS, despite all adherence to ancient and established institutions.
For a few months following Peterloo it seemed to the authorities that the country was heading towards an armed rebellion. Encouraging them in that belief were two abortive uprisings, in Huddersfield and Burnley, during the autumn of 1819, and the discovery and foiling of the Cato Street conspiracy to blow up the cabinet that winter. By the end of the year, the government had introduced legislation, later known as the Six Acts, to suppress radical meetings and publications, and by the end of 1820 every significant working-class radical reformer was in jail; civil liberties had declined to an even lower level than they were before Peterloo. Historian Robert Reid has written that "it is not fanciful to compare the restricted freedoms of the British worker in the post-Peterloo period in the early nineteenth century with those of the black South African in the post-Sharpeville period of the late twentieth century."
One direct consequence of Peterloo was the foundation of the Manchester Guardian newspaper in 1821, by the Little Circle group of non-conformist Manchester businessmen headed by John Edward Taylor, a witness to the massacre. The prospectus announcing the new publication proclaimed that it would "zealously enforce the principles of civil and religious Liberty ... warmly advocate the cause of Reform ... endeavour to assist in the diffusion of just principles of Political Economy and ... support, without reference to the party from which they emanate, all serviceable measures."
Events such as the Pentrich rising, the March of the Blanketeers and the Spa Fields meeting, all serve to indicate the breadth, diversity and widespread geographical scale of the demand for economic and political reform at the time. Peterloo had no effect on the speed of reform, but in due course all but one of the reformers' demands, annual parliaments, were met. Following the Great Reform Act of 1832, the newly created Manchester parliamentary borough elected its first two MPs. Five candidates including William Cobbett stood, and the Whigs, Charles Poulett Thomson and Mark Philips, were elected. Manchester became a Municipal Borough in 1837, and what remained of the manorial rights were purchased by the borough council.
On the other hand R J White has affirmed the true significance of Peterloo as marking the point of final conversion of provincial England to the struggle for enfranchisement of the working class. "The ship which had tacked and lain for so long among the shoals and shallows of Luddism, hunger-marching, strikes and sabotage, was coming to port" : "Henceforth, the people were to stand with ever greater fortitude behind that great movement, which, stage by stage throughout the nineteenth century, was to impose a new political order upon society." : "With Peterloo, and the departure of Regency England, parliamentary reform had come of age." 
The Free Trade Hall, home of the Anti-Corn Law League, was built partly as a "cenotaph raised on the shades of the victims" of Peterloo. Until 2007 the massacre was commemorated by a blue plaque on the wall of the present building, the third to occupy the site, now the Radisson Hotel. It was regarded as a less than appropriate memorial because it under reported the incident as a dispersal, and the deaths were omitted completely. In a 2006 survey conducted by The Guardian, Peterloo came second to St. Mary's Church, Putney, the venue for the Putney Debates, as the event from radical British history that most deserved a proper monument. A Peterloo Massacre Memorial Campaign was set up to lobby for a more appropriate monument to an event that has been described as Manchester's Tiananmen Square.
In 2007, Manchester City Council replaced the original blue plaque with a red one, giving a fuller account of the events of 1819. It was unveiled on 10 December 2007 by the Lord Mayor of Manchester, Councillor Glynn Evans. Under the heading "St. Peter's Fields: The Peterloo Massacre", the new plaque reads:
On 16 August 1819 a peaceful rally of 60,000 pro-democracy reformers, men, women and children, was attacked by armed cavalry resulting in 15 deaths and over 600 injuries.
In 1968, in celebration of its centenary, the Trades Union Congress commissioned British composer Sir Malcolm Arnold to write the Peterloo Overture. Other musical commemorations include "Ned Ludd Part 5" on British folk rock group Steeleye Span's 2006 album Bloody Men, and Rochdale rock band Tractor's suite of five songs written and recorded in 1973, later included on their 1992 release Worst Enemies.
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