Introduction and Historical Background
Unlike the majority of capital cases from the Georgian era, our subject was a street thief and pickpocket rather than a murderer.
In Georgian England, such street criminals were seen by the middle and ruling classes as little better than vermin, so their crimes attracted the death sentence—although in around 73% of cases at the time, this was commuted to transportation to the American colonies.
Jenny Diver’s real name was Mary Young, but she was rechristened by her gang because she was such an expert “diver,” as pickpockets were colloquially known in London underworld cant.
She was a professional criminal who achieved widespread celebrity, ending her career swinging from London’s famous Tyburn Tree on Wednesday, the 18th of March 1741.
It is thought that she was about 40 years old at the time of her death, although no formal record of her birth survives.
Early Life in Ireland and Journey to London
Jenny was born around 1700 in northern Ireland, the illegitimate daughter of Harriet Jones, a lady’s maid. Harriet was forced to leave her position and found lodgings in a brothel, where she gave birth.
She soon deserted the child, leaving Jenny to live in several foster homes before being taken in by an elderly gentlewoman around the age of ten.
Jenny was sent to school, where she learned to read and write and mastered fine needlework. Her dexterity and manual precision equipped her remarkably well for her future life of crime.
Her sewing was skilled enough that she decided to travel to London to establish herself as a professional seamstress.
To raise the money for the ferry crossing, she persuaded a young suitor that she would marry him if he funded their passage to England. Shortly before the ship sailed for Liverpool, the young man robbed his master of a gold watch and 80 guineas and joined Jenny on board.
After arriving in Liverpool, Jenny’s companion was arrested for the theft in Ireland. Jenny sent him his clothes and travel money before leaving for London by road. He was subsequently tried, sentenced to death, and reprieved on condition of transportation to the colonies.
Entering the London Underworld
Upon arriving in London, Jenny met an Irish woman named Anne Murphy, who offered her lodgings in Long Acre.
Anne was the ringleader of a sophisticated gang of pickpockets and introduced Jenny to the underworld trade.
As an apprentice pickpocket, Jenny was given ten guineas to support herself while observing the gang’s methods and practicing how to lift pocket watches, snuffboxes, and purses.
Jenny learned with extraordinary speed. Her intelligence, polish, and dexterity made her such an asset that she soon eclipsed Anne Murphy and assumed leadership of the gang.
The gang formally gave her the moniker “Jenny Diver,” and former leaders and accomplices regularly posed as her liveried servants during elaborate public heists.
Ingenious Cons and False-Arm Ruses
Jenny Diver became legendary for the psychological sophistication of her scams.
She was educated, well-spoken, and smartly dressed, enabling her to blend seamlessly into aristocratic and upper-middle-class gatherings without drawing suspicion.
Her typical modus operandi was recorded in The Newgate Calendar:
“Jenny, accompanied by one of her female accomplices, joined the crowd at the entrance of a place of worship in the Old Jewry, where a popular divine was to preach. Observing a young gentleman with a diamond ring on his finger, she held out her hand which he kindly received in order to assist her. At this juncture, she contrived to get possession of the ring without the knowledge of the owner, after which she slipped behind her companion and heard the gentleman say that as there was no probability of gaining admittance he would return. Upon his leaving the meeting he missed his ring, and mentioned his loss to the persons who were near him, adding that he suspected it to be stolen by a woman whom he had endeavoured to assist in the crowd; but as the thief was unknown she escaped.”
One of her most famous inventions was the use of custom-made false arms.
Dressed in fashionable silks and satins, she would attend fashionable church services with artificial hands resting demurely across her lap on top of her muff or petticoat.
While her visible hands appeared motionless in prayer, her real hands were working beneath her cloak, stripping watches, diamond buckles, and purse strings from the wealthy ladies sitting alongside her and passing the loot to accomplices in the pews behind.
Another recurring stratagem was faking sudden seizures or fainting spells in packed public gatherings, such as in St. James’s Park during royal processions to the House of Lords.
As compassionate bystanders gathered round to loosen her clothing and render assistance, she picked their pockets and handed the stolen property back to gang members posing as her footman and maid.
First Arrest and Transportation to Virginia
Inevitably, Jenny was apprehended in early 1733 after picking a gentleman’s pocket.
She was committed to Newgate Prison and tried at the Old Bailey under her birth name, Mary Young, charged with “privately stealing”.
Because it was her first capital conviction under that identity, the court commuted her death sentence to fourteen years’ transportation to Virginia.
She spent four months in Newgate awaiting passage. When the transport ship sailed, she brought aboard large quantities of stolen goods and cash.
Using her considerable wealth, she bribed the ship’s captain for private quarters and later paid colonial officials to allow her to live in comfort rather than endure hard labour on the tobacco plantations.
Unlawful Return and the Second Escape
Life in colonial Virginia held little charm for Jenny Diver, who missed the excitement and luxury of London.
Only about 5% of convicts transported for fixed terms ever returned to Britain, as returning from transportation before the expiration of one’s term was a capital felony carrying a mandatory death sentence.
Nevertheless, Jenny used her funds and charms to secure passage back to London aboard a merchant vessel.
Resuming her criminal enterprise, she was caught red-handed on 4 April 1738 trying to steal the purse of a Mrs. Rowley in Canon Alley near Paternoster Row.
Under interrogation, she gave the false name Jane Webb.
Because there were no standardized records, photographs, or fingerprint databases in the 1730s, the court failed to connect “Jane Webb” to the previously transported felon Mary Young.
She was once again convicted and sentenced to transportation.
Although contemporary newspapers such as the London Evening Post realized that Jane Webb was the infamous Jenny Diver, the legal authorities failed to press the capital charge of returning from transportation.
On 7 June 1738, she was placed aboard the convict transport Forward bound for America. Within a year, she bribed another shipmaster and returned to England via Liverpool.
The Final Robbery in Sherbourne Lane
Upon returning to London, Jenny found her criminal empire degraded.
Her original accomplices had dispersed, been transported, or died upon the gallows.
Furthermore, aging and advancing arthritis in her hands compromised the manual speed on which her reputation depended.
Her luck finally expired on Saturday, 10 January 1741, in Sherbourne Lane.
Together with an accomplice named Elizabeth Davies and an unidentified male confederate, Jenny set up a scam around wooden planks laid across a muddy street.
The male partner offered his hand to help a young woman named Judith Gardner navigate the boards.
As he lifted Judith’s arm, Jenny slipped her hand into Gardner’s dress pocket to seize a purse containing thirteen shillings and a halfpenny (approx. 65p).
Judith felt the theft instantly and grabbed Jenny’s wrist while it was still inside her pocket.
Jenny struck Gardner repeatedly on the head, but the victim held onto Jenny’s cloak and raised the alarm until passing pedestrians intervened.
Jenny and Elizabeth Davies were restrained and taken to the compter lock-up, while their male accomplice escaped.
The Old Bailey Trial and Condemnation
The magistrates committed Jenny to Newgate.
This time, gaolers and court officers recognized her, and she was formally indicted under both her aliases for privately stealing and for the capital felony of returning from transportation.
Her trial took place at the Old Bailey on Saturday, 17 January 1741, before an impressive bench that included Lord Mayor Humphry Parsons, Lord Chief Justice Baron Probyn, and Sir John Strange, Recorder of London.
Mrs. Gardner testified to the physical struggle and identified Jenny as the thief who entered her pocket.
Jenny conducted her own defence, cross-examining Crown witnesses and calling character witnesses, but the jury took only minutes to return a verdict of guilty on all counts.
At the end of the Sessions, the Recorder sentenced thirteen prisoners to death—seven men and six women, including Jenny Diver and Elizabeth Davies.
Davies succeeded in pleading her belly (claiming pregnancy), which postponed her execution and led to her sentence being commuted to transportation.
Jenny received no mercy, as the crown was determined to make an example of a notorious felon who had twice defied transportation orders.
Execution at the Tyburn Tree
On the morning of Wednesday, 18 March 1741, Jenny was brought from the condemned cells of Newgate to the Press Yard.
Because of her fame and notoriety, the sheriffs permitted her the privilege of a mourning coach rather than the open cart typically reserved for common felons.
She was dressed in a formal black mourning gown, wearing black gloves and a veil.
Accompanied by the Ordinary of Newgate, she rode in the procession alongside the open carts carrying twenty other condemned malefactors through Holborn and Oxford Street to Tyburn.
A massive, curious crowd packed the roadside and filled every vantage point around the triangular three-legged scaffold known as the Tyburn Tree.
Jenny behaved with quiet dignity on the gallows, praying alongside the Ordinary.
The halter was adjusted around her neck, and when the cart was driven away, she was “turned off” under the short drop.
Following the execution, her friends claimed her body and, to prevent the corpse from being seized by anatomists or resurrectionists, had her buried in an unmarked grave in the churchyard of St Pancras.
Her exploits entered popular folklore, inspiring characters in John Gay’s The Beggar’s Opera (in which the pickpocket character Jenny Diver is named after her) and later Bertolt Brecht’s The Threepenny Opera.
Her dramatic path from Newgate to the gallows at Tyburn shares parallels with other major property and robbery executions of the era, such as Joseph Harris in 1777 and Sarah Lloyd in 1800.
Frequently Asked Questions
Who was Jenny Diver?
Jenny Diver (born Mary Young around 1700) was an Irish-born seamstress who became the most famous gang leader and pickpocket in 18th-century London, renowned for her charm, inventive disguises, and dexterity.
How did Jenny Diver pull off her pickpocketing scams?
She utilized aristocratic attire to enter churches, theatres, and royal crowds unsuspected. Her most famous ruse involved wearing lifelike false wooden arms resting quietly in her lap while her real hands picked pockets beneath her cloak, passing stolen watches and purses to disguised accomplices sitting nearby.
Why was Jenny Diver executed if she did not commit murder?
Under the 18th-century “Bloody Code,” privately stealing property valued over one shilling was a capital crime. Furthermore, Jenny had twice been sentenced to transportation to America and had illegally returned to Britain both times—an offence carrying an automatic, non-commutable death sentence.
Did Jenny Diver inspire characters in literature and theatre?
Yes. Her celebrity status in the London underworld led playwright John Gay to immortalize her as the character “Jenny Diver” in his satirical masterpiece The Beggar’s Opera (1728), which later inspired the character in Bertolt Brecht and Kurt Weill’s The Threepenny Opera.
Where and when was Jenny Diver executed?
She was hanged at the Tyburn Tree in London on Wednesday, 18 March 1741, dressed in black mourning clothes and carried to the scaffold in a private coach.
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