The Story Of North Brother Island, The Abandoned New York City Quarantine Site That No One’s Allowed To Visit

Published August 27, 2023
Updated January 21, 2024

Once the site of a sprawling quarantine compound that housed Typhoid Mary in the early 20th century, North Brother Island was abandoned in 1963, leaving its 25 crumbling buildings frozen in time.

New York City is a bustling place. Everywhere you look, there are people — getting on the subway, walking in and out of stores, and moving down the street. But on the East River is an island called North Brother Island where no one has lived since 1963.

For almost a century, the island served a particular purpose. It was purchased by the city in the 1880s in order to build a hospital for patients suffering from diseases like typhus, tuberculosis, and smallpox.

Perhaps unsurprisingly, North Brother Island saw its fair share of tragedy as a result. It not only housed one of history’s most famous patients, Typhoid Mary, but also bore witness to one of the most horrific tragedies in New York City history, the 1904 sinking of the PS General Slocum.

Abandoned Building
Abandoned Hallway
Riverside Hospital
Abandoned House
The Story Of North Brother Island, The Abandoned New York City Quarantine Site That No One’s Allowed To Visit
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The Construction Of Riverside Hospital

The story of North Brother Island began back in 1885, when New York City purchased the uninhabited island in order to build a hospital. That hospital, Riverside Hospital, was meant to separate patients suffering from contagious diseases from the rest of the city.

Riverside Hospital In 1943

The exterior of Riverside Hospital on North Brother Island in 1943.

As Smithsonian Magazine explains, patients and workers would reach the 20-acre island by taking a ferry, which left from 138th Street in the Bronx. There, North Brother Island was essentially "its own city," according to Intelligencer. Alongside its morgue — necessary for a place where many patients never left — it also had a public school and tennis courts.

Surrounded by the waters of the East River, North Brother Island was, perhaps, aesthetically pleasing. But it was also the site of several tragedies.

Typhoid Mary, North Brother Island's Most Infamous Resident

As the site of a quarantine hospital, North Brother Island was naturally the site of many small, personal tragedies. But two of its most infamous tragedies were of historic proportion.

The first had to do with a woman named Mary Mallon, better known as Typhoid Mary. An Irish immigrant, Mallon worked as a cook in various households across New York City and Long Island. And everywhere she went from 1900 to 1907, people got sick with typhoid fever — and many died.

Mallon didn't know it, but she was an asymptomatic carrier of typhoid fever. One of the families that Mary had worked for hired New York City Department of Health sanitary engineer George Soper to investigate, and Soper tracked the typhoid trail to Mallon.

Soper established that all 22 cases of typhoid fever in the New York City area could be traced to Mary Mallon, which is where she got her nickname. She was promptly exiled to North Brother Island, but Mallon fought back — she couldn't believe that she was spreading a disease which she had never had.

Mary Mallon On North Brother Island

Public DomainMary Mallon in quarantine on North Brother Island, after she'd been dubbed the "most dangerous" woman in America.

Indeed, Mallon was able to secure her release in 1910 by promising that she'd never serve food again. But when an outbreak of typhoid fever reoccurred in 1914, Soper was able to trace it to places where Mallon had worked. She was sent back to North Brother Island, where she lived until her death in 1938.

As Mallon was sickening her clients the early 1900s, North Brother Island bore witness to another tragedy: the 1904 sinking of the PS General Slocum.

The Wreck Of The PS General Slocum

On June 15, 1904, some 1,358 passengers and 30 crew members set sail up the East River, en route toward a picnic site on Long Island. The boat was packed with jubilant men, women, and hundreds of children, mostly German-Americans on their annual outing to celebrate the end of the school year.

But the mood turned tragic when the boat suddenly and inexplicably caught on fire as it passed 97th street. Smithsonian Magazine reports that the boat's fire hoses were rotten and quickly burst, rendering them useless. The crew rushed to tell the captain that there was a "blaze that could not be conquered," a fire so bad that it was "like trying to put out hell itself."

The captain tried to steer the ship toward North Brother Island in hopes that it could safely beach sideways so that the passengers could scramble off. But the fire grew larger and larger. Passengers threw themselves into the water, but most could not swim and were further hindered by their heavy clothing. Even passengers who managed to get their hands on life vests were largely doomed, as the vests — like the fire hoses — were rotten.

From the shores of North Brother Island, hospital staff watched in horror. Many of the hospital staff were able to assist the survivors. But not much could be done. Just 321 passengers survived, and the bodies of the dead washed up on the island's beaches.

Until the 9/11 attacks, the sinking of the PS General Slocum in June 1904 was the worst loss of life in New York City history.

Bodies On North Brother Island

New York Public LibraryBodies on North Brother Island after the sinking of the PS General Slocum on June 15, 1904.

Despite these shadows of tragedy, North Brother Island remained a working hospital, in one way or another, until the 1960s. After World War II, it supported veterans and subsequently served as a treatment center for people with heroin addictions. But in the 1960s, North Brother Island was seen as too cumbersome and expensive to continue operating.

It closed in 1963. Then, a surprising new chapter for the island began.

North Brother Island Today

Today, North Brother Island is a strange oasis situated on the East River. The 25 buildings spread out across the island are decaying, making the island dangerous for humans — and perfect for birds.

As the New York City Department of Parks and Recreation explains, birds like gulls, herons, cormorants, and egrets have thrived on the abandoned island. (As well as on nearby South Brother Island.)

Indeed, it's complicated for humans to visit North Brother Island today. First of all, there's only a small visitation window in the autumn (which falls between shorebird breeding season and winter). Second of all, all visitors must have a "compelling academic and scientific" reason for visiting.

For that reason, very few people have stepped foot on North Brother Island in the past 60 years. But you can get a rare glimpse of the island in the gallery above.

There, you can see echoes of the island's former life in photos of abandoned buildings, rusty spiral staircases, crumbling pilings, and more.

After you've explored North Brother Island in the gallery above, discover the tragic story of Boldt Castle which was built on Hart Island in New York State. Then, see another little-known New York City island: Rat Island.

Kaleena Fraga
A staff writer for All That's Interesting, Kaleena Fraga has also had her work featured in The Washington Post and Gastro Obscura, and she published a book on the Seattle food scene for the Eat Like A Local series. She graduated from Oberlin College, where she earned a dual degree in American History and French.
Maggie Donahue
Maggie Donahue is an assistant editor at All That's Interesting. She has a Master's degree in journalism from Columbia University and a Bachelor's degree in creative writing and film studies from Johns Hopkins University. Before landing at ATI, she covered arts and culture at The A.V. Club and Colorado Public Radio and also wrote for Longreads. She is interested in stories about scientific discoveries, pop culture, the weird corners of history, unexplained phenomena, nature, and the outdoors.
Cite This Article
Fraga, Kaleena. "The Story Of North Brother Island, The Abandoned New York City Quarantine Site That No One’s Allowed To Visit.", August 27, 2023, Accessed April 20, 2024.