Poachers were stripping the Mojave of Joshua Trees in the 1930s. Then this Mississippi widow stepped in.

Minerva Hamilton Hoyt, champion of Joshua Tree National Park

Plant thieves were gutting California’s desert in the 1920s. Collectors loaded trucks with Joshua trees and rare cacti, leaving barren wasteland behind.

Minerva Hoyt, a grieving widow from Mississippi, couldn’t stand watching the destruction. She shipped seven train cars of desert plants to New York to show people what they were losing. Then she marched into the White House and convinced FDR to act.

Here’s the story of how one woman’s passion created the park you can explore today.

She left Mississippi for California

Minerva Hamilton Hoyt grew up on a cotton plantation near Durant, Mississippi in 1866. Her wealthy family sent her to finishing schools and music school before she married Dr. Albert Sherman Hoyt.

After losing a baby son, the couple decided they needed a change and moved to South Pasadena, California in 1897. During the long train ride west, Minerva spent hours looking out the window at landscapes completely different from the green hills of Mississippi.

In California, she became active in local causes and served as president of the LA Symphony Orchestra and the Boys and Girls Club.

Desert camping became her escape

Hoyt created a beautiful garden on her five-acre South Pasadena property that made it into Forbes Magazine’s list of important American gardens. She started taking trips to the desert and camping overnight under the stars.

The Joshua trees and cacti seemed strange but beautiful compared to anything she’d known back home. When her husband died in 1918, these desert trips became even more important to her.

But cars were making the desert easier to reach, and more people were discovering these remote places that had been her private sanctuary.

People stripped the Devil’s Garden bare

The area called Devil’s Garden near Morongo Valley was one of Hoyt’s favorite camping spots. It used to be packed with rare desert plants and tall Joshua trees.

But by the mid-1920s, collecting desert plants had become popular with wealthy people in Los Angeles who wanted exotic specimens for their yards. Landscaping crews would drive out with trucks and dig up whole barrel cacti, Joshua trees, and other plants to sell.

When Hoyt went back to her old camping spot thirty years later, she found almost nothing left standing and the whole area looked like a wasteland.

Someone burned down an 80-foot tree

In the summer of 1930, a vandal set fire to a giant Joshua tree that was 80 feet tall, burning it completely to the ground. Hoyt put up a $100 reward to catch whoever did it and used the destruction to get more people interested in protecting the desert.

She said the old tree wouldn’t have died for nothing if it helped people understand why the desert needed protection. That March, she started the International Desert Conservation League and got museum directors, university presidents, and the head of the Forest Service to join as vice presidents.

Seven train cars hauled desert east

Hoyt figured that people making decisions in Washington and New York needed to see what the desert actually looked like. For a big garden show in New York in 1928, she loaded up seven freight cars with desert rocks, cacti, plants, and sand and shipped the whole thing across the country.

She even had desert flowers flown in twice a day to keep them fresh, storing them in her hotel bathtub between trips to the exhibit. The display had painted backgrounds and stuffed animals mixed in with the live plants to show what the desert was really like.

London crowds needed police to control them

The traveling desert shows became huge hits in Boston, New York, and London. In London, so many people crowded around to see the cacti and stuffed coyotes that police had to stand guard to keep folks from pushing too hard against the ropes.

Princess Mary even came to see what all the fuss was about. Newspapers covered the exhibitions, and Hoyt won gold medals while meeting influential people who could help her cause.

William Jardine, who was Secretary of Agriculture under President Coolidge, saw the New York show and became a supporter.

She recommended a million desert acres

In 1928, California asked Hoyt to write a report about which desert areas the state should turn into parks. Working with landscape architect Frederick Law Olmsted Jr., she picked three top spots: Death Valley, the red rock areas of Anza-Borrego, and the Joshua Tree forests north of Palm Springs. Her favorite was a huge one-million-acre area that would stretch from the Salton Sea all the way to Twentynine Palms, including Joshua Tree groves, massive rock formations, and parts of both the Mojave and Colorado deserts. But she decided this area was too special for just a state park and should become a national park instead.

Roosevelt said yes but needed inspection

Early in 1933, Hoyt got a meeting with President Franklin Roosevelt, Interior Secretary Harold Ickes, and the head of the National Park Service. Roosevelt liked what he heard and told Ickes to look into protecting the area.

The government set aside over a million acres to study for a possible “Desert Plants National Park.” But first they had to send Roger Toll from the Park Service to inspect the area and decide if it was really worth protecting.

Toll had a lot of power because his recommendations had killed other park proposals before.

The inspector said no national park

Roger Toll’s inspection trip in 1934 happened during cold, cloudy weather that didn’t show off the desert’s usual beauty. His report said the area didn’t deserve to become a national park.

While he admitted the Joshua trees were interesting, Toll wrote that the desert was “lacking in any distinctive, superlative, outstanding feature” that would make it important enough for national park status. The report looked like it would end Hoyt’s campaign after all her years of work.

But she wasn’t ready to give up and decided to go straight to President Roosevelt.

Photo albums went to the White House

Hoyt hired photographer Stephen Willard to take beautiful pictures of Joshua trees, cacti, desert springs, and mountain views. She put together two photo albums and had artists paint colors onto the black and white flower photos to make them more striking.

California’s governor wrote a letter introducing her to Roosevelt, and the president of the U.S. Chamber of Commerce agreed to personally deliver the albums to the White House in June 1934. When Roosevelt saw them, he told the messenger he was very interested in Hoyt’s conservation work.

Roosevelt signed the monument into existence

The photo albums changed Roosevelt’s mind about the desert and overcame the negative inspection report. On August 10, 1936, President Roosevelt signed a proclamation that created Joshua Tree National Monument, protecting 825,000 acres of California desert.

The protected area was smaller than Hoyt’s original million-acre dream because of problems with railroad-owned land, but it still saved vast Joshua Tree forests and unique rock formations. In 1994, Congress upgraded the monument to full national park status, giving Hoyt the complete victory she had worked toward for decades.

Visiting People of the Desert" exhibit at Joshua Tree National Park’s visitor center

The “People of the Desert” exhibit at Joshua Tree National Park’s Cultural Center showcases Hoyt’s story and original artifacts from her campaign. The exhibit features one of the actual photo albums she created for President Roosevelt, complete with hand-painted flower photographs and panoramic desert scenes taped together.

You can see this leather-bound album that helped convince FDR to establish the monument. The Cultural Center also displays a mural featuring Minerva Hoyt.

The Cultural Center opened in May 2022 at 6533 Freedom Way in downtown Twentynine Palms, replacing the old Oasis Visitor Center. You can walk the short Oasis of Mara trail behind the old headquarters building to see the natural spring that sustained people for thousands of years before Hoyt’s conservation efforts began.

This article was created with AI assistance and human editing.

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