Event Page

The Great Chicago Fire


The Great Chicago Fire is perhaps the most well-known disaster in Chicago's history. Beginning around 9 pm on October 8, 1871, in the O'Leary's barn, the fire burned almost four square miles of Chicago's business district. The cause is still not known, although Mrs. O'Leary and her cow are often blamed. However the fire started, this disaster killed hundreds, destroyed millions of dollars worth in property, and left thousands homeless. From the smoldering ashes, the citizens of Chicago began to rebuild and a new era of building began in the city's history. The new building spurt made Chicago one of the most populous, most economically profitable, and most modern cities in the United States. The Great Chicago Fire caused huge tragedy, but out of the ashes arose the modern Chicago metropolis.


Related Pages

Connect me or another page to The Great Chicago Fire?


Pictures & Records (7)

Add Show More


The Chicago Tribune Records the Fire's Destruction

Page 1
2 images


During the Great Fire, the offices of the Chicago Tribune were also set afire and damaged. However, the destruction did not keep the presses quiet for long. Read here the actual news articles from the days following the tragedy as they document the destruction, the deaths, and the beginnings of the rebuilding of the Chicago business district.


Added by Clio

Why was Mrs. O'Leary blamed for starting the fire?

Mrs. O'Leary and her cow have been the most common answer to the question, “Who started the Great Chicago Fire?” However, this legend has very little fact behind it. The idea that Mrs. O'Leary and her cow were to blame started in the October 9, 1871, evening edition of the Chicago Evening Journal. This paper reported that a cow kicked over a kerosene lantern while being milked by a woman. Since the fire originated in the O'Leary barn, people started blaming Catherine O'Leary for causing the tragic blaze. The truth is that Mrs. O'Leary was not even in her barn when the fire started. She was actually in bed with her husband Patrick and their children, and to this she and her husband testified during the city investigation.

Along with their testimonies, several other factors make it unlikely that Catherine O'Leary started the fire. First of all, the barn and its contents were not insured. The O'Leary family ran a milk business, and in their barn were five cows, a calf, a horse, several tons of hay, and nearby two tons of coal. Everything the family needed for the winter was contained in the barn. Therefore, if Mrs. O'Leary had started the fire, she would have quickly tried to put it out or run for help. Instead the O'Leary family had to be alerted about the fire in order to get out of their home.

The question then arises as to who actually set the fire. Two men remain suspicious to this day: Daniel “Peg Leg” Sullivan and Dennis Regan. Both men were the first to arrive at the scene of the fire. Both men tried to save the O'Leary's property, and both men had several inconsistencies in their testimonies. It is possible that the men were in the barn and accidentally started the fire from a dropped pipe, match, or lantern. However, it can not be known for sure who started the fire that burned almost four square miles of Chicago. It can be safely assumed though, that Mrs. O'Leary and her cow did not start the fire, and should not go down in history as causing one of the worst disasters in the city of Chicago.


Source: http://www.thechicagofire.com/exoneration.php

Added by Clio

Event Details

Area Damaged by Fire: 3 1/3 Square Miles 1
Number left Homeless: 100,000 1
People Killed: Around 300 1
Property Destroyed: $192,000,000 1
From: 08 Oct 1871 2
To: 10 Oct 1871 2
Name: The Great Chicago Fire 2
Factors that helped the fire spread:
1.: The firemen were exhausted from fighting a fire the previous night 1
2.: The firemen's equipment was in poor condition 1
3.: The wrong location was given by the fire department watchman 1
4.: The local fire alarm box was not sounded to alert fire fighters 1
At 9 pm a fire starts in the O'Leary's Barn:
08 Oct 1871 1
Chicago Evening Journal reports a cow started fire:
09 Oct 1871 1
City commissioners hold inquiry as to fire's cause:
November 1871 1
Firemen called to a fire at Lull & Holmes Mill:
07 Oct 1871 1
The fire goes out early in the morning:
10 Oct 1871 1
Source of the Fire:
Patrick and Catherine O'Leary's Barn at 13 DeKoven Street 2
Daniel “Peg Leg” Sullivan & Dennis Regan: Both men admitted to being near the O'Leary residence and had several inconsistencies in their stories 1
Mrs. Catherine O'Leary & cow: This was based largely upon an article written in the Chicago Evening Journal, which said a cow kicked over a lantern 1

Looking for more information about The Great Chicago Fire?

Search through millions of records to find out more.

About this Memorial Page