My Victorian Nightmare

Episode 76 – Female Poisoners of the 19th Century

Host: Genevieve Manion
Date: January 5, 2026

Episode Overview

In this episode, Genevieve Manion delves into the fascinating and chilling stories of two infamous female poisoners from the Victorian era: Adelaide Bartlett and Mary Ann Cotton. The episode explores the mysterious deaths surrounding these women, the societal backdrop of 19th-century England, and the lasting impact of their cases on Victorian culture’s fascination with crime and the supernatural. As always, Genevieve’s narration is peppered with witty asides, historical context, and a delightfully dark sense of humor.

Key Segments and Discussion Points

1. Personal Hauntings & Victorian Spiritualism

Timestamps: 02:30–11:45

"With Their Own Eyes" – A True Victorian Ghost Story

• Genevieve recounts an 1870 Sydney Journal article about a child seeing the ghost of a widow’s dead husband—an encounter that was oddly comforting and terrifying.
• Quote:
  • "One of the most terrifying things that a ghost can do is stare, stand and stare. Ghosts or anybody. Living people too. Like, the most terrifying part of the paranormal activity movies was when, like, the chick would get up and stand and stare at her husband...oof." (07:10)

Inside a Spiritualist Séance

• Reading the minutes from a séance led by famous medium Mr. J.J. Morse; a spirit recounts his journey after death, describing a form of purgatory—a “beautiful island” where souls must contemplate their misdeeds before moving on.
• Genevieve jokes about the Victorian afterlife sounding a bit like being stuck in a lobby with some life lessons to learn.
• Notable impression:
  • “It's as if the escorts say: ‘Alright dude, you can't get into the VIP lounge, but you can sit in the beautiful lobby for a bit. When you clean up your act, you might be allowed back in.’” (11:30)

2. Adelaide Bartlett – The Mystifying Chloroform Case

Timestamps: 17:30–38:00

Background

• Born 1855, Orleans, France—possibly an illegitimate daughter of a French count.
• Married Edwin Bartlett, a wealthy London grocer, in 1875; marriage was unusual and likely platonic after the tragic stillbirth of a child.
  • “God, this sounds like what my nightmares are like. Like I get married to a guy and as soon as the wedding's over, I have to go back to school again...Want to wake up in a cold sweat.” (20:50)
• Edwin, plagued by severe dental problems, possibly gay or suffering too much to be intimate, befriended Wesleyan minister George Dyson, who became Adelaide’s tutor and lover.

The Murder

• Edwin dies suddenly after a bout of illness; an autopsy reveals a large amount of liquid chloroform in his stomach—a method of administration that seemed impossible without leaving burns.
• Adelaide is accused of orchestrating his death to be with Dyson, but the mechanism remains a scientific mystery.

The Trial

• Massive public and press interest—Victorians enthralled by female poisoners.

• Dyson testifies for the prosecution, securing his own immunity.

• Adelaide claims she requested chloroform merely to keep her husband at bay during unwanted advances, as she “couldn’t bear to do it” after his health declined.

• Medical experts for the defense argue that death via oral chloroform would require burns to the lips and throat, which Edwin lacked.

• Jury finds Adelaide not guilty, despite suspecting her involvement.

• Notable Quotes:

  • “A surgeon, Sir James Paget, remarked in the papers: ‘Now that Adelaide has been acquitted for murder and cannot be tried again, she should tell us, in the interest of science, how she did it.’” (35:50)
  • “The public didn’t condemn her—they actually applauded in the courtroom when the not guilty verdict was read. It was almost as if they respected how cunningly she managed to kill him.” (36:20)

Possible Methods/Theories

• Chloroform in gel pills—unlikely, as it would dissolve the gelatin instantly and require many pills.
• Administered while unconscious by tube/funnel—unlikely, as reflexes would induce gagging even in sleep.
• Rectal administration—proven false by autopsy.
• Most likely theory: chloroform mixed in a shot of brandy and gulped so quickly it bypassed burning.
  • “Sadly, it’s not something we can really test on the living.” (37:56)

Aftermath

• Adelaide disappears from records—possibly returned to France or immigrated to the US.
• Dyson is ejected from his church; no further contact between him and Adelaide.

3. Mary Ann Cotton – Britain’s Most Prolific Female Serial Killer

Timestamps: 38:00–1:02:45

Early Life & First Deaths

• Born Halloween 1832, County Durham. Father dies in a mine accident—family immediately evicted, childhood trauma.
  • “Her father’s body was delivered to her mother in a sack bearing the stamp property of the South Hetton Coal Company. Which is simply horrifying. My god.” (41:00)
• Mother remarries; Mary becomes a nurse/dressmaker, described as “a girl of innocent disposition and average intelligence…distinguished for her particularly clean and tidy appearance” (insulting Victorian euphemism).
• Marries William Mowbray at 20; series of children, many die of “gastric fever”—a frequent Victorian diagnosis similar to arsenic poisoning.

The Insurance Pattern

• Urges husband to insure himself and their children—husband and children soon die; she collects on the policies.
• Marries (and buries) three more husbands in quick succession, each time securing insurance policies and suffering similar “paralytic” or gastric illnesses.

The Community Grows Suspicious

• Employs arsenic (typically administered in milk or food) on relatives, including her own mother and several stepchildren.
• Chilling narrative aside: Genevieve guides listeners to a “window” into 1867 Seaham Harbor, describing Mary poisoning her mother’s tea:
  • "What poor Margaret doesn’t know is that the bottle of milk is full of arsenic. Mary will add a little bit to her mother’s tea and leave the bottle for her when she leaves." (52:40)
• Multiple children, husbands, and friends die in proximity to Mary, often within weeks of each other and insured policies.

The Fall

• Parish official Thomas Riley grows suspicious when Mary remarks:

  • “I won’t be troubled long. He’ll go like all the rest of the Cottons.” (58:10)

• After the death of yet another Cotton child, reporters investigate and authorities finally act.

• The doctor orders exhumation; Charles Cotton is found to have died of arsenic poisoning.

• At trial, her defense blames arsenic-dyed wallpaper and a physician’s mistake, both arguments quickly dismissed.

• Jury convicts her in 90 minutes; Mary Ann maintains her innocence till the end.

• Execution detail:

  • “At her execution, it is believed that her rope was made purposely short so as to cause a slow death. She strangled slowly and maintained her innocence till the very end.” (1:02:31)

Notable Quotes

• “It looks like Mary Ann must have attended funerals every single year between 1866 and 1871, often for numerous people, people and children. It is just astounding how it took so long for her to be suspected.” (39:27)
• “Even if we are to assume only say half of these deaths were murders, even if we assumed only a third were, and all others were in fact caused by gastric fever, that is still at least seven people.” (58:55)

Memorable Moments and Observations

• Genevieve’s dark humor and disdain for Victorian euphemisms (“a girl of innocent disposition and average intelligence—sounds like another insult.”)
• Vivid descriptions of Victorian society: from seance rooms to reeking London streets during “the Great Stink.”
• Deep sympathy for Victorian women, caught in webs of poverty, superstition, and deadly opportunity.
• Host’s personal asides referencing true crime obsession and childhood nightmares add a relatable, modern lens.
• The contrast in public perception: the cunning, almost admired Adelaide vs. the reviled, methodical Mary Ann.

Timestamps for Important Segments

• Victorian Haunting Story: 02:30–07:45
• Séance Account & Spiritualism: 07:45–11:45
• Introduction to Female Poisoners/Adelaide Bartlett: 17:30–38:00
• Mary Ann Cotton Case: 38:00–1:02:45

Final Thoughts

Genevieve wraps the episode by tying together society’s enduring fascination with “lady poisoners”—figures who inspired equal parts fear, revulsion, and awe in Victorian England. Through her detailed retellings, the complexity of these cases—both in terms of gendered expectations and forensic mystery—continues to resonate. Fans are encouraged to engage with the show, join the Patreon “Fan Coven,” and return for more tales from the shadowy corners of the 19th century.

For truly chilling late-night listening, or a morbid stroll through history, this episode of "My Victorian Nightmare" is essential.