Potatoes moving through stainless-steel conveyors inside a warm industrial processing facility.

J.R. Simplot Biography: From Farm Trading to Industry

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By around 1980, J.R. Simplot was backing Micron Technology, a young Boise semiconductor company founded by chip specialists. The investor who had built his fortune in potatoes was now involved in financing computer-chip production.

Simplot’s business had grown from farm trading into potato warehousing, wartime food production and frozen french fries. At Micron, he was again financing work done by specialists rather than inventing the technology himself. The contrast between the two industries makes his path to that investment worth tracing.

That path began in southern Idaho, where Simplot left school and the family farm at about 14. His first substantial business money came not from growing potatoes for sale, but from using discarded potatoes to feed hogs.

A Quick Look at the Life of J.R. Simplot

Biography Summary

John Richard “J.R.” Simplot (1909–2008) was an American agricultural entrepreneur and founder of the J.R. Simplot Company. He built a major food-processing business, helped commercialize frozen fries developed with chemist Ray Dunlap and became an early investor in Micron Technology. His career also included unsuccessful ventures, significant legal disputes and civic projects in Boise.

Profile

Full Name: John Richard Simplot

Known As: J.R. Simplot, Jack Simplot and “Mr. Spud”

Born: January 4, 1909, in Dubuque, Iowa

Died: May 25, 2008, in Boise, Idaho, aged 99

Education: Attended school through approximately the eighth grade

Company: J.R. Simplot Company, founded in 1929

Major Roles: Agricultural entrepreneur, company president and chairman; later chairman emeritus

Best Known For: Building a major potato-processing enterprise, commercializing frozen fries with company specialists, supplying McDonald’s and investing in Micron Technology

Leaving the Farm and Making His First Money

John Richard Simplot was born in Dubuque, Iowa, on January 4, 1909. His family moved to the Declo area of southern Idaho while he was an infant. His father farmed, and Simplot grew up working around the family operation and making small trades.

Simplot left school and the family farm around 1923, at about age 14. He later connected his departure to a disagreement with his father over attending a basketball game, though the exact circumstances of that family dispute rest on recollection.

On his own, Simplot bought inexpensive hogs and fed them cull potatoes and other low-cost feed. He later recalled using wild-horse meat and an improvised cooker as well. When he sold the hogs, he made thousands of dollars—enough to help start his own farming operation.

“That made me,” he told interviewer C. J. Hadley in 1998. Simplot used the proceeds to obtain horses and equipment and lease farmland. From there, he expanded into growing and trading potatoes.

A Potato Sorter Becomes a Business

A machine became the next turning point. In the late 1920s, Simplot and an associate acquired an interest in an electric potato sorter. According to a long-repeated account, the partners settled a disagreement with a coin toss, leaving Simplot the owner.

The sorter allowed Simplot to process potatoes for other growers, moving beyond his own fields into services, trading, warehousing and shipping. The J.R. Simplot Company traces its founding to 1929, the year associated with that formative venture.

By about 1940, Simplot’s operation had grown to roughly 33 warehouses. The business that began with farming and a potato sorter was now a major regional shipper of fresh potatoes. Food manufacturing would take it further.

War Contracts Turn Potato Handling into Food Manufacturing

Simplot entered vegetable dehydration in 1941, establishing an onion-processing operation in Caldwell, Idaho. An initial arrangement with a Chicago broker preceded growing wartime demand for dried onions and potatoes to feed American troops.

Drying vegetables preserved food while making it lighter to transport. In a later Idaho Public Television interview, Simplot recalled an Army officer urging him to produce dried vegetables for military use. “That got me in the dehydration business,” he said.

The wartime operation grew far beyond an experimental sideline. Idaho historical accounts describe the company as operating the world’s largest potato-dehydrating plant by the end of World War II. The Idaho Blue Book estimates that its operations supplied approximately 33 million pounds of dehydrated food to the armed forces over a three-year period.

The company was also moving into related agricultural businesses. It identifies purchases of Grandview Farms and Bruneau Sheep Company in 1943 as early landmarks in its land-and-livestock activities. In 1944, Simplot built a phosphate-fertilizer manufacturing facility in Pocatello, Idaho, extending the business into another input used by agriculture.

Frozen French Fries—and the Chemist Behind the Process

After wartime demand for dehydrated food declined, the company explored frozen products. Raw potatoes did not freeze into usable french fries without further processing, making the new business a technical challenge as well as a commercial one.

Ray Dunlap, a chemist working for Simplot, did crucial experimental work on commercially usable frozen french fries. Proper preparation and partial cooking before drying and freezing helped overcome the problems of freezing raw potatoes. Simplot supplied equipment and business backing while the specialists worked on the process.

Simplot later said he had doubted the idea: he expected frozen potatoes to become mushy. But he recalled giving Dunlap freezing equipment, sampling the experimental fries and approving the result. His role was to support the research and turn the resulting product into a business.

The product reached the market in stages. The J.R. Simplot Company dates its first commercial frozen-fry sale to 1946; Idaho historical accounts identify 1953 with commercially viable distribution and broader production. Those milestones reflect the progression from early sales to a larger-scale business.

McDonald’s Expands the Frozen-Fry Business

Fast-food restaurants created another market for prepared potatoes. During the 1960s, Simplot established a frozen-fry supplier relationship with Ray Kroc and McDonald’s. The restaurant chain needed a standardized, convenient product that industrial processing could supply.

The Simplot company became a major supplier. In the early 1990s, Idaho Public Television reported that approximately half of McDonald’s french fries came from Simplot. The relationship brought the company’s frozen-potato production into a nationwide restaurant business.

Expansion, Risk and a Change in Leadership

Food processing remained central as the Simplot enterprise expanded into fertilizer and minerals, livestock, feedlots and overseas activities. There were failures, too. In a 1998 interview, Simplot recalled unsuccessful fish-farming and mining ventures; obituary accounts also described setbacks in mining and tropical agriculture.

“I’m a gambler,” he said in that interview when discussing investment. The description was his own, and the results were uneven: some ventures grew into major operations, while others failed.

In 1973, Simplot stepped down as president of the J.R. Simplot Company and became chairman. His role in the enterprise was changing, even as he remained connected to its business interests.

The Maine Potato-Futures Case and Other Legal Disputes

A May 1976 default on Maine potato-futures contracts led to one of the most consequential disputes in Simplot’s business career. It produced regulatory proceedings and a separate private civil antitrust case, with different outcomes.

In 1978, Simplot and related companies entered consent agreements with the Commodity Futures Trading Commission. Contemporaneous reporting described a combined $50,000 fine and a six-year suspension of U.S. futures-trading privileges. In those regulatory settlements, the parties neither admitted nor denied the commission’s charges.

The civil case reached a different kind of conclusion. A federal jury found that Simplot, fellow processor Peter Taggares and related defendants had conspired to depress Maine potato-futures prices. In 1985, the U.S. Court of Appeals for the Second Circuit affirmed the civil judgment, including a $1,386,000 treble-damages antitrust award. This was a civil ruling, not a criminal conviction; the no-admission CFTC settlement did not erase the separate jury finding.

Separate tax-related difficulties also appeared in his record. Major obituaries reported that Simplot and his company each paid $40,000 in penalties in 1977 involving reported income and improper deductions. The reporting does not establish a specific criminal conviction or plea. Simplot later disputed wrongdoing when recalling his tax difficulties.

Financing Micron Without Founding It

Micron Technology was founded in Boise in 1978 by a group of semiconductor specialists, including the Parkinson brothers and colleagues. Simplot did not found the company. His part began when its founders needed financing for the next stage.

His son Scott brought Micron’s opportunity to him. Around 1980, Simplot invested $1 million, helping the young company expand. Micron was beginning work on its first fabrication facility around that time, and it shipped its first manufactured 64K DRAM in 1981.

He remained a major shareholder as Micron grew, although the relationship was not without boardroom tensions. In 1996, Micron’s board fired executive Steve Appleton and then rehired him. Simplot acknowledged a board mistake in recollections of the episode, but the decision belonged to multiple directors, not to him alone.

Where potato processing had created Simplot’s wealth, Micron put some of that wealth behind another Boise industry. His contribution was capital and business involvement, not the design of the company’s memory chips.

Later Life, Family and Giving in Boise

In April 1994, Simplot retired as chairman of the J.R. Simplot Company and became chairman emeritus, a title he held until his death. He was no longer the company’s day-to-day leader, although his name remained closely associated with the business.

His first marriage, to Ruby Rosevear Simplot, ended in divorce. They had four children: Richard, Don, Scott and Gay. Richard died in 1993. Simplot later married Esther Becker Simplot, who became closely associated with Boise’s arts community. His daughter Gay had been married to Idaho politician C. L. “Butch” Otter, later the state’s governor.

Simplot’s “Mr. Spud” license plate and fondness for McDonald’s food became familiar details of his public image. By 2007, a Forbes estimate cited in major obituaries put the Simplot family fortune at about $3.6 billion. That was an estimate of family wealth, not an audited statement of his personal assets.

He and Esther also supported civic life in Boise. In January 2003, the couple gave $1 million to help acquire land for what became Esther Simplot Park. In 2004, he donated a hilltop Boise home to the state for a proposed governor’s residence. The plan never came to fruition. The property was returned to the family in 2013, and the house was demolished in 2016, both after his death.

A Legacy in Food, Technology and Boise

Simplot died in Boise on May 25, 2008, at age 99, with Esther at his side. His company and the semiconductor business he had helped finance continued without him.

A different kind of legacy emerged in downtown Boise. Simplot had collected vintage farm equipment, including more than 110 historic tractors. After his death, the Simplot foundation developed Jack’s Urban Meeting Place (JUMP), a creative and community center inspired in part by that collection. It opened in December 2015.

Simplot’s rise rested on more than one breakthrough: early livestock profits, industrial potato handling, wartime dehydration, frozen-food commercialization and a major investment in Micron. Some ventures failed, and the Maine futures case left serious civil and regulatory judgments in his record. Across those changes, his role was frequently to organize and finance operations in which other people supplied essential technical expertise.

Timeline

These milestones trace the principal changes in Simplot’s life and business, along with a later Boise project built in his memory.

Timeline.

1909

John Richard Simplot is born on January 4 in Dubuque, Iowa.

About 1910

His family moves to southern Idaho while he is an infant.

About 1923

Simplot leaves school and home at about 14; profitable hog trading helps fund independent farming.

1929

A potato-sorter venture marks the conventional founding year of the J.R. Simplot Company.

Around 1940

The potato warehousing and shipping operation has grown to roughly 33 warehouses.

1941–1944

Simplot starts the Caldwell dehydration business that grows into wartime food supply, and builds a Pocatello phosphate-fertilizer facility in 1944.

1946–1953

The company records a first frozen-fry sale in 1946; broader commercial viability and distribution are associated with 1953.

1960s

Simplot develops the frozen-fry supply relationship with Ray Kroc and McDonald’s.

1973

Simplot leaves the company presidency and becomes chairman.

1976–1978

A Maine potato-futures default leads to litigation in 1976; a separate CFTC consent settlement is announced in 1978.

1978

Micron Technology is founded in Boise by its original semiconductor specialists, before Simplot invests.

Around 1980–1981

Simplot supplies $1 million in Micron financing around 1980; Micron ships its first manufactured 64K DRAM in 1981.

1985

A federal appeals court upholds the civil antitrust judgment arising from the Maine potato-futures episode.

1994

He retires as J.R. Simplot Company chairman in April and becomes chairman emeritus.

2003–2004

J.R. and Esther Simplot help fund Boise parkland acquisition in 2003; he donates his hilltop home for a proposed governor’s residence in 2004.

2008

Simplot dies in Boise on May 25 at age 99.

2015 (after his death)

JUMP, developed by the Simplot foundation around his historic tractor collection and community-center vision, opens in Boise in December.

FAQs

Question: Did J.R. Simplot invent frozen french fries?

Answer: Not by himself. Ray Dunlap, a chemist employed by Simplot, performed essential technical work on producing usable frozen fries. Simplot backed the work and helped build the commercial operation. The company’s first recorded sale was in 1946, while wider commercial production and distribution are associated with 1953.

Question: When did McDonald’s begin its relationship with Simplot?

Answer: The frozen-fry supplier relationship developed in the 1960s. The Simplot company’s current timeline commemorates a handshake with Ray Kroc in 1967; an older company report dates the handshake to 1963. The precise handshake year remains uncertain.

Question: Was J.R. Simplot a founder of Micron Technology?

Answer: No. Micron was founded in Boise in 1978 by semiconductor specialists. Simplot joined later as an important investor who helped finance its expansion. He was neither a founder nor a chip designer.

Question: What was the outcome of the Maine potato-futures case?

Answer: Simplot and related parties entered a 1978 CFTC settlement involving penalties and a trading suspension without admitting or denying the regulatory charges. In separate civil litigation, a jury found a conspiracy to depress futures prices, and a federal appeals court affirmed the antitrust judgment in 1985. The civil judgment was not a criminal conviction.

Question: Did a governor ever live in Simplot’s donated Boise home?

Answer: No. Simplot donated the property in 2004 for a proposed Idaho governor’s residence, but that use never materialized. The property was returned to his family in 2013 and the building was demolished in 2016, both after his death.

Interviews

J.R. Simplot’s 1998 Conversation with Range

In C. J. Hadley’s extended 1998 interview, Simplot looks back on hog trading, the growing potato business and the experiments behind frozen fries. He also discusses McDonald’s, Micron and ventures that did not work out. It is an unusually wide-ranging account in his own words.

Read the interview

Idaho Public Television’s Visions of Idaho Interview Footage

This archival Idaho Public Television program includes Simplot recalling how he entered the vegetable-dehydration business during World War II. The footage offers a firsthand perspective on the transition from shipping fresh potatoes to processing food for the armed forces.

Watch the archival interview

1967 Farm Chemicals Interview, Revisited by CropLife

This CropLife retrospective revisits a 1967 interview originally published in a specialist agricultural trade publication. It offers a view of Simplot’s thinking about business leadership and corporate boards from much earlier in his career than his late-life interviews.

Read the interview retrospective

Further Reading

Sources