The Ice King: How Frederic Tudor Sold New England’s Frozen Ponds to the Tropics

On February 10, 1806, a brig called the Favorite left Boston harbor bound for the Caribbean island of Martinique. Its cargo was so odd that the Boston Gazette felt it had to reassure readers it was not making things up. “No joke,” the paper reported. “A vessel has cleared at the Custom House for Martinique with a cargo of ice. We hope this will not prove a slippery speculation.”

It was, at first, exactly that. The young merchant behind the voyage, Frederic Tudor, lost about $4,500 on the trip, and the next few years went even worse. He was hounded by creditors and spent time in debtor’s prison. But Tudor kept at it, and within a few decades blocks of frozen New England pond water were being unloaded in Havana, New Orleans, Rio de Janeiro and Calcutta. By the second half of the century, the ice trade employed tens of thousands of people, shaped the way Americans ate and drank, and gave the world a habit it never lost: expecting a cold drink, even in July, even in the tropics.

This is the story of how a winter crop that cost almost nothing to grow became one of the strangest global businesses of the 19th century, and of how it melted away almost as fast as it appeared.

A joke at a Boston party

Frederic Tudor was born in 1783 into a well-off Boston family. While one brother studied at Harvard, Frederic left school young to work as an apprentice in a merchant’s store. According to the usual telling, retold by Smithsonian magazine, the idea of the ice trade came out of an offhand question at a party in 1805. Why couldn’t the ice of New England’s ponds be cut, shipped south and sold in the hot ports of the Caribbean?

The idea was not crazy in itself. Wealthy families in Europe and the American colonies had been filling ice houses with winter ice for generations. What nobody had tried was shipping it to the places that had no winter at all, and where, as Tudor bet, people would pay handsomely for something they had never had.

The plan had a few things going for it. Ships often sailed from Boston to the West Indies nearly empty, because they were going there to pick up cargo, so hiring hold space was cheap. The ice itself was free apart from the labor of cutting it, and sawdust, the waste product of New England’s lumber mills, turned out to be an excellent insulator. Tudor’s first ice came from his father’s farm, Rockwood, in Saugus, north of Boston. He bought his own vessel, the Favorite, for the 1,500-mile run from Charlestown to Martinique.

The ice survived the voyage. The trouble came after it arrived. Martinique had nowhere to store it, and customers had nowhere to keep what they bought, so the cargo melted away on the dock. A run of shipments to Havana on the brig Trident the following year lost even more. Tudor wrote in his journal a line that he would spend the rest of his life trying to earn: “Let those laugh who win.”

Debt, sheriffs and a better ice house

For a decade, Tudor mostly lost. His debts soon outran his income, and he spent parts of 1812 and 1813 in debtor’s prison. Yet he kept learning. The lesson of Martinique was that shipping ice was only half the problem. The other half was keeping it once it arrived.

In 1805 he had studied ice houses and concluded they could work above ground, not just in cellars and pits. The buildings he put up in Cuba had inner and outer timber walls packed with peat and sawdust, plus a way to vent the air, and that layout became the basic design for ice houses for the rest of the century. By 1815 he had borrowed $2,100 to buy ice and build a new one in Havana: a double-shelled structure 25 feet square on the outside, 19 feet square inside and 16 feet high, holding about 150 tons. “Pursued by sheriffs to the very wharf” in Boston, as his biographers put it, he sailed for Havana on November 1, 1815.

That depot changed the economics. Tudor could not get exclusive legal rights to sell ice in Cuba, but he did not need them. Whoever controlled the only good cold storage controlled the market. Not every experiment worked. In 1816 he borrowed $3,000, at 40 percent interest, to bring a shipload of Cuban limes, oranges, bananas and pears to New York, packed with 15 tons of ice and 3 tons of hay. Nearly all of the fruit rotted on the month-long voyage, adding several thousand dollars to his debts. He pressed on anyway, opening new markets in the American South.

His pricing could be ruthless. In Havana his ice sold for 25 cents a pound. When a rival ship showed up in one of his markets, Tudor would drop his price to a money-losing one cent a pound. Competitors could not sell at a profit, and if they refused to sell at all, their ice simply melted in the heat. Once they were gone, Tudor raised prices again. By the mid-1820s about 3,000 tons of ice a year were leaving Boston, and two thirds of it was his. He was soon known as the Ice King. “The coast is now cleared of interlopers,” he once declared. “If there are any unslain enemies, let them come out.”

The man who invented the harvest

Tudor’s other problem was cost. Cutting ice with axes, saws and chisels was slow, and ragged blocks packed badly in a ship’s hold, leaving gaps where warm air could work in. The fix came from Nathaniel Wyeth, a Cambridge man who worked as a foreman harvesting ice on Fresh Pond and agreed to supply Tudor.

In 1825 Wyeth introduced a horse-drawn ice cutter, a plow-like sled with blades that scored the frozen pond into a grid. Workers then sawed and split along the grooves, freeing neat, uniform blocks. The harvest cost fell from about 30 cents a ton to 10 cents, and Tudor was able to more than triple his production. Square blocks could be stacked tightly, like masonry, which meant more ice fit in each hold and less of it melted. Wyeth went on to invent more tools and aboveground ice houses with double walls for insulation. According to the Dictionary of American Biography, “it was said at his death that practically every implement and device used in the ice business had been invented by Nat Wyeth.”

Wyeth had a second career that sounds like it belongs to a different person. In the 1830s he led two fur-trading expeditions to the Pacific Northwest, founding Fort Hall in what is now Idaho in 1834. It later became an important stop on the Oregon Trail. The venture lost money, and by 1837 he was back in Boston, in debt, and soon back in the ice business.

Fresh Pond became the center of the industry. In 1841 the horse-drawn Charlestown Branch Railroad began carrying ice from the Fresh Pond ice houses of Tudor, Wyeth and their rival Addison Gage to the wharves in Charlestown, and the next year a new railroad to Fitchburg opened up Walden Pond. Ice had become valuable enough to fight over. When the owners around Fresh Pond could not agree who had the right to cut it, the lawyer Simon Greenleaf was called in to settle it in 1841. He ruled that harvesting rights would be split in proportion to how much shoreline each owner held. Ice rights could now be bought and sold, and land around the pond soared. One owner who had paid $130 an acre in the 1820s turned down $2,000 an acre by the 1850s.

Sixteen thousand miles to Calcutta

Tudor’s boldest bet came in 1833. With the Boston merchants Samuel Austin and William Rogers, he loaded the ship Tuscany with 180 tons of winter ice and sent it from Boston to Calcutta on May 12. India was then some 16,000 miles and four months away from Massachusetts. When the ship reached the mouth of the Ganges that September, some people in Calcutta assumed the whole thing was an elaborate joke.

It still had about 100 tons on board. The British elite in Calcutta, worried about the summer heat, quickly agreed to exempt the cargo from the usual East India Company regulations and tariffs, and part of each later shipment was set aside in the city’s ice house for local doctors. The first shipment cleared a profit of about $9,900. Regular shipments to Calcutta, Madras and Bombay followed from 1835, and Tudor built ice houses in all three cities. Calcutta became his most lucrative market by far, earning him more than $220,000 in profits between 1833 and 1850.

He needed the money. Around the same time Tudor had been speculating in coffee, using his ice business as collateral. In 1834 the bet went wrong and left him more than a quarter of a million dollars in debt. That was the same year he married Euphemia Fenno, then 19, while he was 50. The India trade helped him dig out.

One of his buildings still stands. Tudor’s ice house in Madras, now Chennai, was built in 1842 facing the Bay of Bengal. After the natural ice trade collapsed, it was sold in 1880 to a lawyer, Biligiri Iyengar, who remodeled it and named it Castle Kernan. The Hindu monk Swami Vivekananda stayed there for nine days in February 1897. Today it is called Vivekanandar Illam, Vivekananda House, and houses an exhibition about his life. It began as a warehouse for Massachusetts pond ice.

Thoreau watches his pond leave

By the 1840s the trade had grown far beyond one man, and it reached one of the most famous ponds in American literature. In the winter of 1846 to 1847, Henry David Thoreau was living in his cabin at Walden Pond when the ice cutters arrived. He described the scene in Walden, in the chapter called “The Pond in Winter”:

“To speak literally, a hundred Irishmen, with Yankee overseers, came from Cambridge every day to get out the ice. They divided it into cakes by methods too well known to require description, and these, being sledded to the shore, were rapidly hauled off on to an ice platform, and raised by grappling irons and block and tackle, worked by horses, on to a stack, as surely as so many barrels of flour.”

The workers told Thoreau that on a good day they could get out a thousand tons, the yield of about one acre. They stacked the cakes into a pile 35 feet high, packing hay between the outer layers to keep out the wind, and estimated that it held about 10,000 tons. At first, he wrote, it looked like “a vast blue fort or Valhalla.” The cutters themselves reckoned that not even a quarter of it would reach its destination. A still greater part of that heap never got to market at all; it was not quite melted until September 1848.

The ice clearly fascinated him. He noticed that the Walden ice, seen up close, had a green tint but looked blue from a distance, and that a dropped cake could lie in the village street “like a great emerald.” A little later in the chapter comes one of the most quoted lines about the ice trade: “Thus it appears that the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well.”

A new kind of thirst

Ice changed what people expected from food and drink. By the middle of the 19th century, Americans wanted their water chilled whenever possible. Iced milk became popular, and so did German lager, which is brewed and served cold; by the 1860s, ice let brewers make it year round. New drinks such as the sherry cobbler and the mint julep could only be made with crushed ice. Ice cream had been a luxury that took huge amounts of ice and labor to make. In 1843 Nancy Johnson patented a hand-cranked freezer that made the job far easier, and with a steady ice supply, ice cream became something ordinary people could have.

Ice also reshaped the food business. Fishermen took it to sea; in 1858 the Grimsby fleet in England began carrying ice so it could make longer voyages and bring back bigger catches. Refrigerator cars packed with ice let Chicago’s meatpackers, including the rival firms of Armour and Swift, slaughter cattle in the Midwest and ship dressed beef east. In 1864, natural ice kept a shipment of salmon eggs alive on the long voyage from Britain to Australia, which made possible the Tasmanian salmon fishery.

In Britain, New England ice even became a brand. In 1844 an American businessman named Eric Landor set up the Wenham Lake Ice Company, built a depot on the Strand in London and marketed his Massachusetts lake ice as unusually pure, persuading British customers to avoid local ice, which was condemned as polluted and unhealthy. That pitch landed in a city whose own river would soon be notorious; a little over a decade later came the Great Stink of 1858. The brand did so well that in the early 1860s a lake in Norway, Oppegård, was renamed “Wenham Lake,” so that Norwegian ice could be sold under the famous name.

The ice rush and the Ice Trust

Tudor died in Boston on February 6, 1864, a rich man. The business he had started kept growing without him, but its center shifted. Exports from New England to India peaked in 1856 at 146,000 tons, then declined. Total U.S. ice exports peaked around 1870 at 65,802 tons. More and more of the harvest went to American cities instead. New York tripled in size between 1850 and 1890. By 1879, households in the eastern cities were using about two thirds of a ton of ice a year each, and New York alone needed 1,500 wagons just to deliver it.

To meet that demand, the industry moved north and grew enormous. Harvesting needed ice at least 18 inches thick, strong enough to hold men and horses. Bad winters brought shortages that newspapers called ice famines; one in 1870 hit both Boston and the Hudson, and another followed in 1880. Entrepreneurs responded by opening up Maine’s Kennebec River. By the 1880s about four million tons of ice were routinely stored along the Hudson and in Maine, and the Hudson alone had around 135 major ice houses and 20,000 workers. At its peak, the U.S. trade employed about 90,000 people and 25,000 horses.

Big money brought big schemes. Charles W. Morse, a businessman from Bath, Maine, merged New York’s ice companies into the American Ice Company, a near monopoly that was capitalized at $60 million. On May 1, 1900, Morse tried to use that control to raise the price of ice. It backfired when the New York Journal revealed that he had obtained special privileges from the Tammany Hall political machine, and that the mayor, Robert Van Wyck, and the Tammany boss, Richard Croker, had been given shares in what became known as the Ice Trust. Morse still walked away with a profit of about $12 million. He was later jailed for violating federal banking laws and won his release by faking a serious illness, but that is another story.

The doctor who made ice

The real threat to the Ice King’s world came from a doctor in Apalachicola, Florida. John Gorrie arrived there in 1833, the same year the Tuscany sailed for Calcutta. During yellow fever outbreaks he tried to cool his patients by hanging pans of ice from the ceiling. Ice shipped from the North could run out, so he set out to make his own. According to a story retold by Smithsonian magazine, on Bastille Day, July 14, 1847, with the town’s stores of northern ice exhausted, the French consul in Apalachicola amazed his guests by serving champagne on ice that had been made right there in Florida. The toast went to the man who made it: Dr. Gorrie. His machine used air as its working gas, the Cincinnati Iron Works built a model for public demonstration, and in 1851 he received a U.S. patent.

According to Smithsonian magazine, a New York paper mocked the “crank” in Florida “that thinks he can make ice by his machine as good as God Almighty.” His main financial backer died the year his patent was granted, and the rest drifted away. Gorrie suspected that Tudor was behind a campaign to smear his invention, and he wrote that “moral causes” had been brought into play against it. He concluded that mechanical refrigeration “had been found in advance of the wants of the country,” and he died in 1855 without seeing it succeed.

He was right that it was early, not wrong. Other inventors kept at it: Jacob Perkins had built an ether vapor-compression engine in 1834, Ferdinand Carré championed ammonia machines, and Carl von Linde later freed the brewing industry from natural ice. Plant ice first beat natural ice in hot, distant markets: Australia in the 1850s and India in the 1870s, where new ice companies in Madras and Calcutta soon pushed out the imports from Boston. In the United States, natural ice had a growing problem of its own. Reports of ice cut from polluted lakes and rivers had surfaced as early as the 1870s, and worries about safety grew.

Plant ice production in New York doubled between 1900 and 1910. By 1914, the United States was producing 26 million tons of plant ice a year, more than the 24 million tons cut from lakes and rivers. Then the electric home refrigerator finished the job. Local ice harvests hung on in places until after World War II.

What is left

Very little of the industry survives. Fresh Pond, once the heart of the trade, is now a reservoir and park for the city of Cambridge. The ice house in Chennai is a museum about something else entirely.

One small place still does it the old way. In South Bristol, Maine, the Thompson Ice House has been cutting ice from its pond since 1826, and volunteers keep the tradition going each February. On February 15, 2026, in its 200th year, an estimated 1,000 people turned up to watch and help as they cut 16-inch-thick blocks weighing more than 400 pounds apiece. By the end of the day four tiers of ice were stacked inside, insulated with sawdust in a 10-inch wall cavity. The ice is saved for an ice cream social in July.

That is the whole trade in miniature: a winter crop, a sawdust-lined shed and a summer treat. Tudor’s real invention was not the ice itself, which every cold pond produced for free. It was the idea that cold could be stored, shipped and sold like any other good, and that people who had never had it would come to feel they could not live without it. He was right about that. Every refrigerator, every freezer aisle and every iced drink in a hot country is a descendant of the Favorite‘s slippery speculation.

If you like strange episodes from 19th-century Boston, read about the Great Molasses Flood. For another unlikely use of ice and sawdust, there is Britain’s plan for an aircraft carrier made of frozen sawdust. And for more Victorian infrastructure that once seemed permanent, see the pneumatic tubes that carried city mail and the long fight to lay the first transatlantic cable.

Further reading