Catherine Donegan O’Leary (1827-1895) was an Irish immigrant and dairy worker who lived with her husband, Patrick, at 137 De Koven Street. Her barn was the origin point of the Great Chicago Fire, and her name became closely associated with the disaster. Murphy uses her story to examine how rumor, anti-Irish prejudice, and newspaper reporting shaped public memory of the fire. Though an 1871 official inquiry found no evidence that she started the blaze, and the city formally exonerated her in 1997, Catherine’s name remained linked to the catastrophe for more than a century.

Murphy begins by humanizing Catherine, presenting her not as a caricature but as a hardworking mother operating a small milk business to support her family. He places her within the crowded and highly flammable environment of the neighborhood, where wooden buildings, sheds, fences, hay, and dry conditions made fire spread rapidly. Her connection to the fire’s origin is therefore tied to location as much as individual action. This context shifts attention away from a single culprit and toward the broader conditions that made the city vulnerable to disaster.

The core of Catherine’s significance lies in the conflict between the public myth and the verifiable facts. The press immediately began circulating a baseless rumor that the fire started when her cow kicked over a lantern during a nighttime milking. As one paper reported, the blaze was “caused by a cow kicking over a lamp in a stable in which a woman was milking” (125). This story spread rapidly and became accepted by many readers as fact. Murphy contrasts these reports with testimony from the official inquiry, which cleared the O’Learys of responsibility. By placing rumor beside documented evidence, he shows how newspapers helped shape public understanding of the disaster.

Catherine’s role in the book ultimately centers on scapegoating and historical memory. The cow-and-lantern story provided a simple explanation for a disaster caused by multiple failures, including unsafe construction, communication breakdowns, weather conditions, and exhausted emergency services. Murphy uses her story to show how prejudice and repetition can transform an unsupported claim into accepted history. Through this example, The Great Fire examines how public memory is constructed and how blame can overshadow evidence.

Joseph E. Chamberlin (1851-1935) was a 20-year-old reporter for the Chicago Evening Post who was one of the first journalists on the scene of the fire. His ground-level observations provide one of the book’s main eyewitness perspectives on the disaster. As an on-the-spot witness, Chamberlin documented the fire’s rapid spread through the city’s West and South Divisions, offering detailed descriptions of everything from crowd behavior to the overwhelmed response of the fire department. Murphy integrates Chamberlin’s account to give readers a close view of the disaster as it unfolded.

Chamberlin’s key contribution is his record of the confusion and breakdown that accompanied the fire’s spread. He tracked the misdirected fire alarms, observed the chokepoints at the bridges, and witnessed the fire leap across the river, all of which support Murphy’s argument that the catastrophe was the result of compounded errors and vulnerabilities. His descriptions are not just factual but also intensely emotional, capturing the terror, exhaustion, and sensory overload of the experience. He described the inferno as “a surging ocean of flame” (63), a phrase that conveys the disaster’s overwhelming scale and power. Murphy uses this testimony to show how eyewitness accounts preserve details that official reports often overlook.

Furthermore, Chamberlin’s perspective introduces an element of class-based conflict into the narrative. His initial distaste for the “miserable alleys” of the O’Leary neighborhood reflects the prejudices of many wealthier Chicagoans. His language reveals how poor and immigrant neighborhoods were viewed by members of the city’s professional class. However, his later observations of panic and disorder among all classes of people challenge the tidy, elite-driven narratives that claimed there was “no panic.” By including Chamberlin’s candid reporting, Murphy tests competing claims about public conduct and reveals how official histories often sought to minimize the extent of social breakdown. Chamberlin therefore as serves both a witness to the disaster and an example of how personal bias shaped contemporary interpretations of the event.

Horace White (1834-1916) was the editor-in-chief and co-owner of the Chicago Tribune, one of the most influential newspapers in the Midwest. As a prominent member of Chicago’s elite, his eyewitness account embodies the city’s prevailing attitude of civic pride and boosterism, which was dramatically shattered by the fire. Murphy uses White’s perspective to examine how quickly that confidence collapsed as the scale of the disaster became clear. White’s movement from distant observer to displaced survivor helps Murphy trace the breakdown of order across the city.

Initially, White dismissed the fire alarm, a detail that Murphy includes to show how normalized fires had become in the dangerously dry city. However, once on the street, his tone shifted dramatically as he realized the magnitude of the blaze. His description of the fire moving with terrifying speed—“The dogs of hell were upon the housetops” (47)—marks his transition from confidence to alarm and provides an account of the fire from the perspective of the business district. His reporting documented the fire’s advance through the city’s commercial center and recorded the growing fear among residents as buildings, streets, and escape routes became unsafe.

White’s story is also important to Murphy’s examination of the city’s vulnerabilities. White believed that the Tribune building was “fireproof,” reflecting broader confidence in Chicago’s modern development. Its destruction after the failure of the waterworks shows how dependent even major buildings were on the city’s water supply and emergency systems. Murphy uses this episode to show that no single structure could remain safe once these systems failed. Furthermore, White’s description of an orderly evacuation, in which “everybody was good-natured and polite” (75), contrasts with other accounts describing panic and confusion. Murphy presents these differences to compare how witnesses from different backgrounds described public behavior during the fire.

Claire Innes was a 12-year-old girl whose family had recently moved to Chicago. Her experience of the Great Fire is preserved in a detailed letter she wrote to a cousin, which was later published. For Murphy, her account is important because it provides a child’s perspective on the disaster and records how ordinary families experienced the fire. By weaving her story throughout the book, Murphy shows the fear, confusion, and practical decisions involved in escaping the city during the fire.

Innes’s contribution to the narrative is both geographical and emotional. Her family’s escape attempt takes the reader through the chaotic streets, across dangerously crowded bridges, and into the heart of the panic. Her description of being separated from her parents in the crush of the crowd maps the lived geography of escape, highlighting real-world obstacles like bridge bottlenecks and alley entrapments that are often abstracted in official reports. Her testimony powerfully conveys the sensory experience of the disaster: the choking smoke, the falling cinders, and the terror of being lost and alone. Murphy uses these details to show how individuals experienced the disaster at street level.

Murphy’s decision to include Claire’s letter alongside newspaper accounts and official records is a key part of the book’s structure. Her private account adds another perspective to the public reporting of the fire and allows readers to compare personal memory with newspaper descriptions of the disaster. Her story of being trapped in an alley as buildings burned around her is a moment of profound suspense and a testament to individual resilience. Ultimately, Claire’s perspective ensures that the history of the fire is not just a story of burning buildings and systemic failures but also a deeply human story of a child’s search for her family amid unimaginable chaos.

Alexander Frear (1820-1882) was a New York State Assembly member who was visiting relatives in Chicago at the time of the fire. As an outsider with high social status, his perspective offers a unique lens on the disaster, one that Murphy uses to test claims of class bias, examine the spread of rumor, and analyze how “instant histories” are constructed in the immediate aftermath of a crisis. Frear’s dramatic first-person account, written for the New York World, details his frantic, night-long search for his sister-in-law and her children through the burning streets.

Frear’s narrative extends the book’s scope into the city’s wealthier districts, documenting panicked flights from hotels and mansions. His observations are particularly valuable because they contradict the carefully managed image of calm promoted by city leaders like Horace White. Frear reported scenes of total disorder, including a “mob of men and women, all screaming and shouting” (69), looting, and wild-eyed animals darting through the streets. These observations contrast with accounts that described the evacuation as orderly and controlled. Murphy includes Frear’s perspective to show that experiences of the fire varied depending on location, timing, and the witness recording the event.

Murphy also uses Frear’s account to examine how eyewitness reports shaped public understanding of the disaster. Frear described several striking incidents, including a man deliberately setting fire to furniture and a girl whose hair caught fire as she tried to escape. Murphy presents these details alongside other accounts of the fire, allowing readers to compare dramatic personal testimony with official reports and newspaper coverage. Frear’s article became part of the early reporting that helped shape public memory of the disaster. Through this account, Murphy shows how stories written during a crisis can influence how later generations understand historical events.

James H. Hildreth was a former Chicago alderman and a Civil War veteran whose past experience with ordnance made him a key figure in the city’s improvised civil defense during the fire. He represents citizen-led initiative in the face of institutional collapse. Murphy includes Hildreth’s story to illustrate the practical and ethical dilemmas of disaster response, particularly the tactic of creating firebreaks by demolishing buildings.

When it became clear that the fire department was overwhelmed, Hildreth organized a team to blow up buildings along Harrison Street using gunpowder. The destruction of these buildings created gaps that helped slow the fire’s southward spread. Murphy presents this episode as an example of residents adapting quickly during the crisis and using available knowledge to limit further destruction. Hildreth’s actions also show that the response to the fire extended beyond official emergency services.

Hildreth’s role in the book highlights the difficult decisions made during the disaster. Destroying private property to stop the fire raised questions about responsibility, authority, and public safety during emergencies. Murphy uses Hildreth’s story to show how residents and local leaders acted under pressure when ordinary systems of control were no longer effective.

Robert A. Williams served as Chicago’s chief fire marshal in 1871. In The Great Fire, his experiences show the limits of the city’s emergency response during the disaster. Tasked with coordinating just 185 firefighters and a fleet of aging steam engines against a wind-driven inferno, his struggle highlights the severe constraints under which the city’s emergency services operated.

Murphy uses Williams’s actions to trace the decisions made as the fire moved through different parts of Chicago. Williams is shown repositioning engines, ordering alarms, and attempting to defend the bridges while firefighters struggled to contain the flames. His actions reflect the difficulties faced by a department working with limited manpower, exhausted crews, and failing infrastructure. Murphy uses this portrayal to challenge claims that the firefighters were simply drunk or incompetent during the crisis.

Instead of scapegoating, Murphy draws on Williams’s official after-action report and testimony from the subsequent inquiry to provide an evidence-based account of the department’s response. This record shows a leader and a force pushed beyond the point of exhaustion by fighting a major blaze the previous night. By focusing on the department’s exhaustion, limited resources, faulty equipment, and the city’s flammable construction, Murphy shifts attention away from individual blame and toward the broader conditions that made the fire difficult to control.

The two municipal fire-alarm operators stationed in the courthouse tower, watchman Mathias Schaffer and telegraph operator William J. Brown, were the human components of Chicago’s supposedly state-of-the-art emergency communication system. Their actions on the night of October 8, 1871, provide a stark example of how a combination of human error and systemic weakness can lead to catastrophic failure. Murphy focuses on their story to illustrate his theme that from the very beginning, “everything went wrong!” (42).

Tasked with sighting fires and transmitting the correct alarm-box number to fire stations, the pair made a critical mistake. Schaffer misidentified the fire’s location, obscured by smoke and distance, and had his assistant strike box 342, sending the first responders nearly a mile away from the O’Leary barn. Compounding this error, Brown stubbornly refused to strike the correct box, 319, fearing it would create confusion. This delay allowed the fire more time to spread before firefighters reached the scene.

Murphy uses this incident not merely to assign blame but to analyze operational realities. He balances the inquiry’s findings of fault with contextual factors, including the men’s fatigue from the previous night’s fire and the hazy, moonless conditions. The story of Schaffer and Brown shows how the fire-alarm system depended heavily on individual judgment and visibility under difficult conditions. Murphy uses the incident to demonstrate how early delays contributed to the scale of the disaster.