The Story Of The Radium Girls And Their Decades-Long Fight For Justice

Published April 6, 2023
Updated May 7, 2026

Explore the haunting story of the Radium Girls, a group of women exposed to lethal amounts of radium while working in watch factories in early 20th-century America.

Radium Girls

Wikimedia Commons“Radium girls” painting alarm clock faces in the Ingersoll factory in January 1932.

During World War I, scores of American women on the homefront joined the workforce for the first time. Those who landed a job painting objects like clock dials with glow-in-the-dark radium counted themselves especially lucky, as the pay was fantastic and the work was light. But many of these so-called “Radium Girls” met a terrible fate.

Working in factories in New Jersey, Illinois, Connecticut, and elsewhere, Radium Girls earned roughly three times as much as they would at other jobs, since glow-in-the-dark instruments could be used by the military during the war. They used paint enhanced with radium, an element which had been discovered in 1898. It was heralded as a cure-all miracle drug, as well as a substance that could make things glow in the dark, and the factory workers habitually got radium on their hands, hair, and clothing.

The Radium Girls were assured that the paint was safe to handle. Indeed, they were even encouraged to lick their paintbrushes to give them a sharp tip as they worked on items like watch dials. But radium was highly radioactive. And before long, the Radium Girls started getting sick.

This is the sad story of the Radium Girls, from the terrible side effects they suffered, to how they changed workplace safety regulations forever.

The New Technology That Paved The Way For Radium Girls

The story of the Radium Girls begins with radium itself, which was identified by Pierre and Marie Curie in 1898 and successfully isolated a few years later. The couple knew it was dangerous — they both suffered burns from handling radium and felt frequently exhausted from radiation sickness. But as the Nobel Foundation notes, they also found that radium could destroy sick cells, which made it a promising cure for illnesses like cancer.

Pierre And Marie Curie

Getty ImagesPierre and Marie Curie in 1905.

Indeed, radium was soon seen as an invention that could cure anything and everything. It was suggested as a remedy for ailments ranging from blindness and hysteria to acne and the common cold. Before long, this “miracle drug” was also put in tonic water, chocolate, toothpaste, and cosmetics. Radium even found its way to bread and beer.

What’s more, radium could make objects glow in the dark. Companies began selling nightlights, clocks, and watches made with radium-paint, which would stay visible all night long. It seemed like a scientific miracle.

But radium was dangerous. It was radioactive, and sustained contact with it could be fatal.

Ad For Radium Water

Wikimedia CommonsAn ad for radium water.

Sadly, this became all too clear when “Radium Girls” were hired to paint military instruments with glow-in-the-dark radium paint.

The Dangerous Work Of The Radium Girls

After the United States entered World War I in 1917, patriotic women flocked to the nation’s factories to do their part for the war effort. Many took jobs with the United States Radium Corporation and set to work painting objects with radium-based paint. The women were assured that radium was not dangerous — even though men who worked in the company’s lab routinely wore lead aprons while working with radium.

Indeed, the radium girls were given no protection of any kind. They were even encouraged to lick their brushes to get a fine point detail work. And so, day after day during the war — and for many years after — the Radium Girls painted watches and dials, licking their paint brushes without any fear.

Radium Girls At Work

Wikimedia CommonsEmployees of the United States Radium Corporation known as “Radium Girls” paint numbers on the faces of wristwatches using radioactive paint.

Radium dust from the paint got all over their clothes, skin, and hair, but many of the workers liked its sparkle and glow. Some Radium Girls even took to wearing their finest dresses to work on Fridays so they would “glow” while dancing on the weekends. These so-called “ghost girls” even applied radium to their teeth to “give their kiss a pop.”

At first, the Radium Girls seemed to have the ideal job. It was fun, easy, and well-paid, and many of the workers recruited family and friends to join them. By the 1920s, there were roughly 300 Radium Girls in the country.

But then they started to get sick.

The Horrific Health Consequences Of Working With Radium

Radium Girl Before And After

Wikimedia CommonsSo-called “radium jaw,” a condition in which abscesses grow completely unchecked.

In January of 1922, a Radium Girl named Mollie Maggia got a toothache. She went to the dentist, who pulled a tooth. Then another. To the alarm of her dentist, Maggia’s wounds didn’t heal. Instead, they seeped blood and pus. The dentist ultimately decided Maggia needed surgery to remove a fast-growing abscess he’d found on her left jaw, but during the operation, he found that her jawbone didn’t look right — it was ashy and gray.

He gently prodded it with his finger. To his shock and horror, the whole bone crumbled under his fingertip.

Maggia’s left jawbone had more or less disintegrated. That summer, the rest of her jaw was removed. And then, just a few months before her 25th birthday, Mollie Maggia died. She had developed tumors which cut into her jugular vein and flooded her throat with blood, choking her to death. Maggia had died from repeated exposure to radium, but her cause of death was erroneously listed as syphilis, which discredited her story.

But Maggia was far from the only Radium Girl to fall sick. As the National Library of Medicine reports, they developed toothaches, mouth sores, painful gums and jaws, and achy hips and feet. They felt exhausted, lost teeth, and struggled to eat without pain. Some developed cancerous tumors, and died.

And soon, the Radium Girls fought back.

How The Radium Girls Fought Back — And Left Behind A Powerful Legacy

Poisoned Radium Girls

YouTubeNine of the 14 “radium girl” plaintiffs seeking compensation from Radium Dial Company for asserted permanent injury suffered as a result of poisoning contracted through work painting radium on watches dials. February 11, 1938.

By the early 1920s, the public stance on radium had begun to change. One of the original founders of the United States Radium Company, Dr. George Willis, had gotten sick himself. Though he had once assured the Radium Girls that radium was safe, Willis had developed cancer.

In 1923 he wrote, “The reputation for harmlessness enjoyed by radium may, after all, depend on the fact that, so far, not very many persons have been exposed to large amounts of radium by daily handling over long periods… There is good reason to fear that neglect of precautions may result in serious injury to the radium workers themselves.”

Around the same time, the United States Radium Corporation quietly ordered a study. It found that radium was unsafe. Though the company tried to bury the study’s findings, they couldn’t keep it quiet for long.

Indeed, it was clear to the Radium Girls that something was wrong. If they weren’t sick, they knew someone who was. And so, in 1927, five surviving Radium Girls led by Grace Fryer sued their former employer. Their stories spread, and outrage on their behalf skyrocketed. The Radium Girls were young women, many of them young mothers, who were sick and dying.

Ultimately, the company agreed to settle, and the dangers of radium became more well known. But for many of the Radium Girls it was too late. Suffering from radiation poisoning, many died agonizing deaths in their 20s or 30s. They developed blood cancer, leukemia, and amenia; some had to get amputations or blood transfusions; one woman was bedridden for 50 years.

But their story changed the United States forever. The shameful experience of the Radium Girls led to better workplace protections, and influenced the creation of the U.S. Occupational Safety and Health Administration.


Enjoy this article on the unknown history of the radium girls? Next, read about how the Nagasaki bombing almost didn’t happen. Then read about the worst human experiments in history.

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author
Richard Stockton
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Richard Stockton is a freelance science and technology writer from Sacramento, California.
editor
Kaleena Fraga
editor
A senior staff writer for All That's Interesting since 2021 and co-host of the History Uncovered Podcast, Kaleena Fraga graduated with a dual degree in American History and French Language and Literature from Oberlin College. She previously ran the presidential history blog History First, and has had work published in The Washington Post, Gastro Obscura, and elsewhere. She has published more than 1,200 pieces on topics including history and archaeology. She is based in Brooklyn, New York.
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Stockton, Richard. "The Story Of The Radium Girls And Their Decades-Long Fight For Justice." AllThatsInteresting.com, April 6, 2023, https://allthatsinteresting.com/radium-girls. Accessed May 8, 2026.