Grover Shoe Factory disaster

Grover Shoe Factory disaster

The Grover Shoe Factory disaster was an industrial explosion, building collapse and fire that killed 58 people and injured 150 when it leveled the R. B. Grover shoe factory in Brockton, Massachusetts on March 20, 1905. Following a boiler explosion, the four-story wooden building collapsed and the ruins burst into flames, incinerating workers trapped in the wreckage.

The Grover disaster brought new attention to industrial safety and led to stringent safety laws and a national code governing the safe operation of steam boilers.

The factory

The R. B. Grover shoe factory was big, but not the biggest in Brockton, a town that had 35,000 shoe workers. The wooden building, shaped like a letter "E", occupied half a city block. [ cite web
title= The R. B. Grover & Company Shoe Factory Boiler Explosion (photos)
publisher= USGenWeb
quote= The boiler traveled several hundred feet, damaging a number of buildings and coming to rest in the wall of a house.
] Grover made the popular Emerson brand shoe, [cite web |url=,M1 |title= 1903 illustrated ad for Emerson Shoes
publisher= McClure's Magazine
] and business had been good enough to add a fourth floor.

The factory was heated using steam radiators, with the steam being produced by coal-fired steel boilers installed in a brick boiler house attached to the wooden factory as the crossbar of the "E".When the fourth floor was added, the original boiler was replaced by a larger one and the old boiler, 17 feet long and six feet in diameter, was left in place as a backup. Since the new boiler could generally meet the factory's demands on its own, the old one was seldom used; and when used, was used reluctantly. Grover's chief engineer David Rockwell, who had a first-class engineer's license and twelve years experience, did not trust it.


The new boiler had to be flushed out as part of its regular maintenance, so Rockwell had put the old boiler back into service temporarily.Early that cold damp Monday, he fed its coal fire and put the boiler to work heating the building for arriving day-shift workers.At 7:45 a.m. the plant manager telephoned Rockwell to ask about some strange noises coming from the radiators along one wall. Rockwell had just stepped out of the building, but his assistant assured the manager that everything was in order.

A few minutes later, the old boiler exploded, rocketing up through three floors and the roof.

Collapse and fire

The flying boiler knocked over an elevated water tower at one end of the building and its full tank smashed through the roof, causing that end of the building to immediately collapse, with the floors pancaking and the walls falling in on top of them. cite news
title= EXPLOSION KILLS 53; MANY ARE MISSING; Brockton Shoe Factory Collapses When Boiler Explodes.
date= March 21, 1905
publisher= The New York Times
quote= The city is in mourning for fifty-three of her citizens whose lives were blotted out early to-day by the explosion of a boiler in a large shoe manufacturing establishment in the Campello district, conducted by the R.B. Grover Company.

Many workers who survived the initial explosion and collapse were trapped by broken beams and heavy machinery. Burning coals thrown from the boiler's fire pit landed throughout the debris, starting fires that were fed by broken natural gas lines.The factory's more than 300 windows, now blown out, created a chimney effect in the parts of the factory still standing, resulting in a fire hot enough to melt iron pipes and radiators.The wooden floors, treated nightly with linseed oil to keep the dust down, burned quickly.High winds helped spread the fire to nearby storage sheds and neighboring buildings including a hardware store and a rooming house.

The Campello neighborhood's district firehouse shared a city block with the factory and its firefighters arrived quickly, as did many local citizens.Using long timbers as levers, they were able to lift some of the wreckage and rescue some workers before the flames reached them. Local newspapers recount many acts of heroism in the rescues made that day.

Barrels of naphtha, a volatile industrial solvent related to gasoline, were stored in a wooden shed directly behind the boiler house. The shed was set afire by the burning coals and the naphtha exploded, throwing sheets of flame onto the wreckage and driving rescuers away.


Between 300 and 400 workers were in the factory at the time of the explosion.Workers in the sections still standing escaped down stairways or climbed to the roof; others had to jump from windows because the explosion had knocked some fire escapes off the building.

About 100 workers escaped unharmed and 150 were injured.A number who were only slightly injured went home without reporting their injuries.Police later related the story of a worker so dazed that he left the scene, applied for a job at another shoe factory, worked all day, then went home to find his family mourning him. cite news
title= BIG PUBLIC FUNERAL FOR BROCKTON VICTIMS; Death List Total 55 Now -- 45 Persons Missing.
date= March 21, 1905
publisher= The New York Times
quote= Fifty five dead, 14 identified, 45 missing, and 268 employees of the factory accounted for is, in brief, to-night the situation following yesterday's boiler explosion and fire at the shoe factory of R. B. Grover Co.


An immediate search was made for the chief engineer. Rockwell was at first reported as among the injured, then could not be found, then at one point was reported as having left town.From her kitchen window, Mrs. Rockwell had seen him sitting in a chair near the boiler house window five minutes before the explosion.A search of the boiler house the next day turned up a charred body, a bent watch, two rubber heels and a torn piece of clothing identified by Mrs. Rockwell as belonging to her husband.

Survivors were asked to register their names with the police.Body collection began that afternoon, with only bone fragments to be found toward the rear of the factory where the fire was worst. As families arrived looking for missing workers, grief-stricken relatives ran back and forth between reading the latest survivor lists and watching the recovery of bodies.

Due to the extreme heat of the fire, only a few bodies could be positively identified. Thirty-nine unidentified victims were buried in a ceremony at Brockton's Melrose Cemetery three days later. cite web
first= Derek A
last= Canavan
title = Remembering Brockton's Greatest Tragedy
quote= The men of the Campello firehouse were heroes that day. As hundreds of workers and residents of the Campello neighborhood ran from the fire, the Campello firefighters charged into the inferno looking for workers whose cries for help were barely audible over the roar of the flames.
] The disaster's 58th victim, Hiram Pierce, died on April 15. cite news
title= Fifty-eighth Brockton Victim Dead
date= April 16, 1905
publisher= The New York Times

Financial assistance

On the day of the fire, the leatherworkers union announced that the injured would be paid $5 weekly until they recovered, and that the families of the dead would receive $100 for each family member killed.Civic leaders created the Brockton Relief Fund, which collected and distributed nearly $105,000 in cash assistance to the families.Factory owner Robbins Grover worked for the rest of his life to secure financial aid for the families of those who died. cite web
title= Remembering the 1905 Grover Shoe Factory Explosion
last= Canavan
first= Derek A
publisher= National Board of Boiler and Pressure Vessel Inspectors
quote= ...the timeworn boiler succumbed to age and poor engineering and exploded at its seams. The boiler ripped itself from its stanchions and tore a path through the four-story building, turning it into a crematorium.

Failure theories

An assistant engineer who had been with Rockwell five minutes before the explosion stated that when he left, the boiler gauges showed steam pressure to be in the safe range and the boiler to have plenty of water.The state Inspector of Boilers checked the boiler's fusible plug and determined that the explosion was not caused by a lack of water.

Rockwell's wife stated that for the past few days her husband had been irritable because he had to operate the boiler at "a pressure it was unequal to". A factory official stated that he was "at a loss" to account for the explosion, and when told of Mrs. Rockwell's remarks said that the amount of pressure on the boiler was not a matter in which factory officials interfered, adding that the engineer "took his orders in this matter from the Hartford Boiler Insurance Company, and if he overworked that boiler he did it without our knowledge. We do not even know why he used the old boiler this week instead of the newer one".

:(The Hartford Steam Boiler Inspection and Insurance Company provided regular inspection and testing to customers of its insurance program, as well as on-site engineering services, [ History of The Hartford Steam Boiler Inspection and Insurance Company] ] resulting in something of a shared responsibility with boiler owners for safe operation.)

One Grover executive speculated that the explosion might have been caused by a recently installed safety device. C. E. Roberts, a manager of Hartford Steam Boiler, stated "So far as I have been able to learn there appears to have been no carelessness in the handling of the boiler, and the explosion, in my opinion, was caused by a defect that was impossible to discover."


A coroner's inquest was convened. A Grover representative testified that the boiler was inspected in December and found in apparent good condition. Several employees testified that David Rockwell "seemed capable of attending to his duties" that morning. Boiler inspectors who examined the ripped-open boiler reported finding a crack in one of its riveted, lap jointed seams.Experts characterized the boiler, built in 1890, as old technology likely to have a short service life under high pressure. Thousands of similar boilers were then in use in the United States.

On March 29 the district attorney stated that the accident was due to a hidden defect in the boiler and that no criminal charges would be filed. cite news
title= NO BLAME FOR 58 DEATHS.; Grover Factory Explosion Due to Hidden Defect, the Finding.
date= March 30, 1905
publisher= The New York Times
] As to civil liability, two weeks later a judge ruled that the explosion was caused by a defect that could not have been discovered, and held the company blameless. cite news
title= GROVER COMPANY EXONERATED; Held Blameless for the Great Disaster at Brockton
date= April 14, 1905
publisher= The New York Times
] He also found that the various insinuations made against chief engineer Rockwell were untrue.

Engineering study

An engineering study begun as part of the inquest brought new facts to light.cite book
title= Engineers' Review: A disastrous Boiler Explosion
date= April, 1905
pages= 81-87 of 831
] At least two barrels of naphtha were stored in a wooden shed directly behind the boiler house.The study said that without the naphtha explosions the number of deaths would have been only about one-quarter of the actual. When the naphtha exploded, it crushed one side of the factory building, pinning more workers under beams and machinery. A second outbuilding containing naphtha caught fire after about fifteen minutes and there was a second naphtha explosion, showering hundreds of gallons of the flaming liquid on the burning wreckage.

Engineers estimated the force of the boiler explosion as equal to 300 kilos (660 pounds) of dynamite.


Although his factory was insured, Captain Grover was financially ruined.The R. B. Grover Company declared bankruptcy and assigned its remaining assets, more than 30 Emerson shoe stores scattered around the country, to its creditors. cite news
title= GROVER SHOE FIRM FAILS; Owners of Factory Which Blew Up Assign Voluntarily
date= April 11,1905
publisher= The New York Times


The American Society of Mechanical Engineers (ASME) had been founded in 1880 in response to the boiler explosions that had become common as the use of steam power expanded during the Industrial Revolution. Between 1880 and 1890 there were over 2000 boiler explosions in the United States. By 1890, some 100,000 boilers were in service, many of them unsafe. Inspections were rare, and operating guidelines almost nonexistent. Steam pressures were regularly cranked up to produce additional work.cite web
title= The True Harnessing of Steam
last= Varrasi
first= John
publisher= Mechanical Engineering
quote= One hundred fifty-nine boiler explosions occurred in 1880, the year that a small group of men assembled in New York City to found the American Society of Mechanical Engineers.

The Grover disaster, coupled with another fatal Massachusetts shoe factory boiler explosion the following year,cite web
title= The Birth of a Code: ASME Boiler and Pressure Vessel Code
publisher= The Pressure Systems Interest Group
quote= On December 6, 1906, another serious explosion took place at a shoe factory, this time in Lynn. Although only one person was reported killed, this incident motivated the Governor of Massachusetts to include in his inaugural address a month later a demand for prompt action.
] brought new cries for improved industrial safety.A new governor demanded prompt action and a Board of Boiler Rules was formed, drafting a simple three-page set of rules. After the ASME helped overcome manufacturer objections to "needless government interference", Massachusetts passed "An Act Relating to the Operation and Inspection of Steam Boilers" in 1909. The Massachusetts laws eventually led to passage of a national boiler safety code.

Safety improved, but the Massachusetts fatalities would not be the last. Twenty-three people were killed and 94 injured in 1962 when a boiler exploded and ripped through a New York Telephone Company cafeteria at lunchtime. A city agency later determined that the boiler had been improperly maintained and operated. cite news | url=
last= Benjamin
first= Philip
date= October 4, 1962
publisher= The New York Times
quote= The boiler, weighing more than a ton, rocketed through the room, struck the ceiling, bounced back down and then smashed through the opposite wall of the cafeteria, killing and maiming those in its path.

ee also

* Boiler insurance
* Fire-tube boiler
* Pemberton Mill
* Sultana steamboat explosion


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