On Thanksgiving Day in 1900, thousands of football fans flooded into San Francisco to witness one of the biggest sporting events of the year — the fierce rivalry game between Stanford University and University of California. What began as a festive afternoon filled with excitement and school spirit would soon transform into one of the most horrifying disasters in American sports history.
The tragic collapse of a factory rooftop near the stadium left dozens dead and injured in a catastrophe so shocking that it still haunts historians more than a century later.
A Thanksgiving Morning Full of Excitement
On the morning of Thanksgiving in 1900, 18-year-old Thomas Peddler left his family home in a working-class neighborhood of San Francisco with a simple promise to his mother: he would return in time for turkey dinner.
But Thomas had one goal before coming home — finding a way to watch the massive football game between Stanford and California.
The annual rivalry game was already legendary by 1900. More than 20,000 spectators were expected to pack the stadium, creating one of the largest sporting gatherings the city had ever seen.
The problem was that Thomas had no ticket.
Still, he was determined not to miss the spectacle.
Searching for a Way Into the Stadium
Thomas rushed to the stadium and waited near the entrance gates as crowds poured into the venue. Around 11 a.m., his close friend Charles arrived, and together they tried to figure out how to sneak inside.
However, the stadium was already overflowing hours before kickoff.
Even paying fans struggled to find places to stand.
The two teenagers considered climbing the stadium fence, but every decent viewing spot had already been claimed. Frustrated, they wandered back toward the entrance gates searching for another option.
That was when they noticed something dangerous unfolding across the street.
The Factory Roof Becomes a Viewing Platform
A massive five-story white brick factory stood directly across from the stadium. From its rooftop, spectators could clearly see the football field.
People had already started scaling the building using ladders, windows, and fire escapes.
Without hesitation, Thomas and Charles joined them.
The climb was risky, but eventually they reached the flat rooftop, approximately 55 feet above the ground. At first, there were only a handful of people there, allowing them to secure perfect viewing spots overlooking the game.
But as kickoff approached at 2:30 p.m., the rooftop became dangerously overcrowded.
Hundreds of people crammed onto the roof despite factory workers desperately warning them to leave.
Nobody listened.
The Game Begins — And Disaster Strikes
When the game started, the atmosphere was electric.
Fans screamed, bands played, and cheers from inside the stadium echoed throughout the neighborhood. The excitement spread to the rooftop crowd, where spectators shouted and celebrated as if they were inside the arena themselves.
Then, about 20 minutes into the game, a cracking sound echoed beneath the crowd.
Thomas and Charles turned toward the noise and noticed people scrambling near one side of the roof.
Seconds later, a much louder crack thundered through the building.
The entire rooftop collapsed.
Hundreds of spectators plunged into the factory below.
The Horrifying Truth Inside the Factory
The building beneath them was not an ordinary factory.
It was a glass manufacturing plant.
Inside the massive structure stood a gigantic glass furnace capable of reaching temperatures hotter than molten lava — over 4,000 degrees Fahrenheit.
Some victims fell directly to the ground 55 feet below.
Others, including Charles, landed on the exterior of the enormous furnace located in the center of the building.
At first, survivors believed those who landed on the furnace had been lucky because they avoided the deadly fall.
But within seconds, horrifying screams filled the factory.
The outside surface of the furnace was so hot that workers normally operated it only from a distance using long metal tools. Anyone touching it directly had no chance of survival.
The victims instantly caught fire.
Witnesses described horrifying popping sounds as bodies ignited and burned against the scorching furnace walls.
Thomas Peddler’s Final Moments
Thomas miraculously survived the initial collapse by grabbing onto a wooden support beam suspended above the furnace.
Dangling high above the chaos, he searched desperately for his friend Charles.
What he saw was unimaginable.
Charles and several others writhed in agony on the furnace surface before eventually disappearing into cracks leading into the blazing interior.
As screams echoed throughout the building, rescuers and bystanders rushed inside. Among them was Thomas’s father.
In a cruel twist of fate, Thomas’s father looked upward and spotted his son clinging desperately to the beam.
But the intense heat inside the factory made it impossible for Thomas to maintain his grip.
Sweat poured from his hands.
Then he slipped.
Thomas fell directly onto the furnace exterior below.
He instantly ignited.
The Aftermath of the San Francisco Roof Collapse
By the end of the disaster:
- 23 people were dead
- Dozens more suffered horrific burns and life-altering injuries
- Entire families were left devastated
Yet remarkably, many spectators inside the football stadium remained completely unaware of the tragedy unfolding just yards away.
The game continued.
It was only after the match ended, when celebrating fans poured into the streets, that they discovered the horrifying scene outside the factory — burned bodies lying near the collapsed building.
The event became one of the deadliest and most disturbing sports-related disasters in American history.
Why the 1900 Thanksgiving Disaster Still Matters
The 1900 San Francisco glass factory disaster exposed the dangers of overcrowding, poor crowd control, and inadequate public safety measures at major sporting events.
At the time, building safety regulations were weak, and authorities failed to prevent hundreds of spectators from climbing onto an unstable industrial rooftop.
Today, the tragedy serves as a chilling reminder of how quickly excitement can turn into catastrophe when safety warnings are ignored.
More than a century later, the story of Thomas Peddler, Charles, and the other victims remains one of the darkest forgotten chapters in sports history.
Final Thoughts
What began as a thrilling Thanksgiving football game became a nightmare that shocked an entire city.
Young fans simply searching for a better view unknowingly climbed onto the roof of a deadly glass furnace factory — a decision that would cost many of them their lives.
The tragedy stands as one of the most horrifying examples of how disaster can strike in the middle of celebration, leaving behind scars that history should never forget.