The Cocoanut Grove Nightclub Fire

In Boston Massachusetts, on Thanksgiving weekend, 1942, a fire at the Cocoanut Grove Nightclub killed more than 492 partygoers. It is credited to be the deadliest nightclub fire in the nation's history.

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A short in the a/c units set the flammable decor a blaze

Flammable Materials

The cause of the fire was not officially determined, but there is reason to believe that, at least in part, the highly flammable coolant used in the air conditioning units was to blame. Whether a short in the units caused the flammable gas to explode like a bomb, or the fire started from another source, the remaining fan pressure circulated the gasses throughout the venue expanding the fire.

The nightclub was also adorned with decorations consisting of elaborate palm trees and synthetic plants. These were all made of highly flammable materials that not only burned and spread fire quickly, but also produced a thick opaque smoke when ignited.

the club was operating at more than two times their capacity

Overcrowded and Unsafe

On the night of the fire, the club was operating at nearly two times its capacity. Although the club had been inspected by the Boston fire department several weeks prior to the fire and deemed safe, later investigations discovered that the club had been operating with out licenses or permits for capacity, food service, liquor or entertainment.

Flammable Decor
Indoor decorations were made of highly flammable materials
Rapid Acceleration of Fire
Flammable gasses in the air conditioners accelerated the fire
Lack of Working Emergency Exits
Bouncers and staff locked exits, preventing escape
More than 400 people died as a result of the fire

Responsible Parties

On the night of the fire, the owner was recovering at Mass General Hospital from a heart attack and was not present at the venue. None the less, a criminal investigation found the owner guilty of negligence and involuntary manslaughter. He would spend more than four years in prison before being pardoned by the Governor of Massachusetts. He died some months later, after release from prison.

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