Forty-five feet below the thousands of stamping feet loomed the squat, 30-by-60-foot east furnace. Fifteen tons of molten glass bubbled within at 3,000 degrees Fahrenheit — a temperature on par with a red dwarf star. This was the only furnace in action that day. More observant fans would have noticed the capping atop the chimney behind them glowing red as it emitted a persistent plume of smoke.
But the action was in front, not behind. And even onlookers who grew uneasy couldn't negotiate the crowd to descend. "I don't know how many hundred people were up there, but there wasn't an inch of standing room to spare," Arthur Schwarz told the Examiner. So they made the most of it: "All of us were laughing and jesting," Charles Taylor told the Chronicle. "Some of the fellows said: 'If this thing breaks, we'll all go down together.'"
Jonn E. Hare, San Francisco Examiner
The glass works’ roof “was black with people.”
San Francisco Examiner
“Sectional drawing of the glass works furnace room illustrating how the accident happened.”
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Twenty minutes into the game, they did.
Countless thousands of bottles produced at the glass works would eventually be filled with "bitters." The ads for competing brands of bitters riddled the newspapers of the day, each claiming its brew was, truly, the most healthful of wonder drinks.
"This was a concoction with a lot of alcohol and a lot of laxatives," explains Jeff Wichmann, the author of Antique Western Bitters Bottles and an authority on glass factories of the era. "They'd put all kinds of herbs in them. It was supposed to be medicinal. But it gave you a really good buzz."
Crafting the vessels for alcoholic laxatives was not a happy life. Glassblowers, often barely into their teens, produced 100 dozen or more bottles a day in a process combining tedious repetition, intense labor, and danger. Blowers inhaled concentrated doses of the toxic vapors spewing out of the furnaces and befouling the factory; lung cancer was rampant.
On Nov. 29, 1900, the men tending the east furnace were Ignace Jocz and Clarence Jeter. As on any other day, they would have been sweating through sweltering heat and snorting stale, acrid air. Today, however, the roars of the crowd would have permeated the factory's din. And, soon enough, light would permeate the dark factory too, after the roof "Gave Way With Its Burden Of Humanity."
It came quickly and totally. "We could see a Berkeley player kicking the ball and all moved to watch him closely. Then the roof sprung like a gallows trap," Percy Fuller recalled to the Examiner. "I grabbed something and held. Those next to me fell.... I turned to the building's interior and saw a writhing, yelling mass of humanity struggling to get out of a veritable hell." More than 100 spectators disappeared into the gaping hole, pinballed off the joists and crossbeams atop the factory, and fell the equivalent of four stories to the brick floor below.
They were the fortunate ones.
Jocz and Jeter estimated an additional 60 to 100 people fell directly atop the glowing furnace. Had they broken through the brick furnace-top keeping the molten glass within "they would have withered in that heat like a feather in ordinary flame," said the grimly eloquent Jocz. "There were enough of them to have filled the oven."
Had plummeting fans penetrated the furnace, they would have been killed instantly and left no trace — the big oven was three times hotter than a crematorium. Instead, in a series of sickening thuds, they landed on a furnace-top heated to 500 degrees. Those who fell here did not die quickly or painlessly. Rather, they found themselves immobilized with broken bodies upon a surface as hot as a frying pan.
It gets worse: The furnace was secured beneath a series of iron "binding rods." These poles, resembling massive croquet hoops, enclosed the furnace like a cage. A number of the victims found themselves trapped in this cage, pinned between the rods and the red-hot furnace, and struggling to move after a 45-foot fall.
It gets even worse: Victims' falling bodies severed fuel pipes, and boiling oil spurted upon the their wriggling bodies, scalding skin and saturating clothing. The terrible heat of the furnace ignited the flowing oil. Gravely injured victims, already trapped atop the 500-degree furnace, burst into flame.
But there is one last detail, and it's the worst of all: The broken, burning, shrieking victims were, in large part, not men. They were children.
The majority of those killed and an alarming portion of the maimed were boys — some as young as 9 years old. Boys were the least likely to have $1 — a sum with the buying power of $30 or more today. Boys were the least likely to consider the risks of leaping up and down atop a factory. And, in a coldly Darwinian touch, boys were the ones most likely to be pushed toward the back of the roof, into the least desirable spots farthest from the game action — directly over the furnace.
"We got all but one off the oven," recalled Isidore Ezekiel, a clerk who helped Jocz and Jeter pull the burning bodies off the furnace. "That little fellow, a boy of about 10 years, was actually roasted to death before our eyes.... His clothes caught fire and he simply screamed and lay still."