The American Dentist Who Drilled a Secret Message on Tojo's Dentures

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Getty Images

After his country surrendered to the United States in 1945, former Japanese Prime Minister Hideki Tojo had a pretty rough go of things. A failed suicide attempt left his stomach mangled (he tried to shoot himself in the heart but missed), and he had to recover in a Tokyo jail while he awaited trial for war crimes. While imprisoned, he became the butt of a prank that left a secret message drilled into his top set of false teeth, right at the tip of his tongue: "Remember Pearl Harbor."

The message was put there by a 22-year-old dental prosthetics officer with the U.S. Navy named Jack Mallory. Mallory was assigned to the 361st Station Hospital in Tokyo, which was responsible for nearby Sugamo Prison where Tojo was being held. Just one month after arriving in Japan in 1946, Mallory was handed a stupefying assignment: The architect of Japan’s war against the U.S. needed dentures, and Mallory was to make them for him.

Jack Mallory and his roommate, a dentist by the name of George Foster, were called to Sugamo Prison to examine Tojo, whose teeth were decaying and crumbling from his gums. “I knew I was going to meet an evil man," Mallory told Sierra Countis of the Chico News & Review in 2002. “It was a shock to see him. He was very humble and just a meek, little guy.”

Tojo had requested the dentures so he could speak for himself at his upcoming trial. He knew his execution was a foregone conclusion, so when Mallory suggested he get a full set of false teeth, Tojo declined and asked only for the top row—he wouldn’t be needing them for long and didn’t want to waste anybody's time.

Word of the assignment got out, and Mallory’s colleagues at the hospital egged him on to use the opportunity to pull off a legendary prank. He wanted to inscribe "Remember Pearl Harbor" on the dentures but knew such a conspicuous message would be caught easily. He decided to use Morse code instead, so he drilled the sentence into the row of false teeth as a series of dots and dashes.

Mallory and Foster always referred to it as a “prank” and not much more. “I figured it was my duty to carry out the assignment,” Foster recalled in 1988. “But that didn’t mean I couldn’t have fun with it.”

“It wasn’t anything done in anger,” Mallory told the AP in 1995. “It’s just that not many people had the chance to get those words into his mouth.”

The prank was meant to be kept secret, though news got out after someone at the dental service blabbed about it in a letter home, where the story traveled so fast that it even found its way onto a Texas radio broadcast.

With news of the deed now bouncing back to and around Tokyo, Mallory confessed to his supervisor before things could get more out of hand. “That’s funny as hell," Mallory recalled being told, "but we could get our asses kicked for doing it.” His supervisor ordered the men to undo their prank immediately.

Late one evening in February 1947—some three months after first inscribing "Remember Pearl Harbor" in Morse code into the false teeth—Mallory and Foster paid a visit to Tojo’s cell and asked the guard to wake him up. They needed to perform emergency work on his dentures, they said, and Mallory swiftly and discretely ground the hidden message off Tojo’s teeth. All reports indicate Tojo never knew it was ever there.

The next morning, a supremely pissed-off and high-ranking colonel called on Mallory and Foster to ask about the prank. With the evidence inside Tojo's mouth ground and sluiced away, the young dentists were able to soundly deny everything.

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Jack Mallory returned to the United States in 1947 and set up a dental practice in California that he ran for decades. Before he left Tokyo, however, he spent a day sitting in on Hideki Tojo’s trial. As Mallory recalled to the Chico News & Review, his former patient recognized him inside the courtroom, smiled, "pointed to his teeth and bowed toward him in thanks."

Tojo was able to speak for himself at his trial and took responsibility for Japan's actions during the war. He was found guilty and was hanged on December 23, 1948.

Jack Mallory passed away in 2013 at the age of 88. His online obituary includes stories of skiing and other outdoor adventures, plus a quick, vague aside about a "dental prank" performed on Hideki Tojo, "the 'mastermind' behind the attack of Pearl Harbor."

When Theodore Roosevelt's Antique Gun Was Stolen From Sagamore Hill

Wikimedia Commons // Public Domain
Wikimedia Commons // Public Domain

Shortly before hitting the battlefield on July 1, 1898, Theodore Roosevelt had a decision to make. He was about to lead a volunteer cavalry known as the Rough Riders in the Battle of San Juan Heights in Santiago, Cuba, during the Spanish-American War. In protecting both his life and the lives of his men during combat, what sidearm should he choose?

Roosevelt, an avowed arms enthusiast, had an arsenal in his personal collection as well as numerous firearms issued by the U.S. military. The gun he chose to holster on his waist was a Colt Model 1895 .38 caliber double-action revolver with six shots, a blue barrel, and a checkered wood grip. While it may not have been the most formidable weapon at his disposal, it was the most emotionally resonant. The gun, a gift from his brother-in-law, had been retrieved from the wreck of the U.S. battleship Maine, whose sinking had claimed the lives of 266 men and helped usher in the war. He considered the gun a tribute to the sailors and Marines lost in the tragedy.

Now it had become an instrument of that war. In the conflict, Roosevelt aimed his revolver at two opposing soldiers. He missed one. The other was struck—and the wound was fatal. “He doubled up as neatly as a jackrabbit,” Roosevelt later wrote.

Just a few years later, Roosevelt would be president of the United States. The gun remained in his possession until his death in 1919, and eventually came into the care of Sagamore Hill, his onetime home and later a historic site. The Colt occupied a place of honor in the property’s Old Orchard Museum, behind glass and next to the uniform that he wore during the charge.

In April of 1990, a museum employee walked past the display and noticed something unusual. The Colt was gone. The weapon used by the 26th president to kill a man would go missing for 16 years, recovered only under the most unusual of circumstances.

“This poor gun has been through a lot,” Susan Sarna, the museum’s curator, tells Mental Floss. “It was blown up on the Maine, sunk to the bottom, resurrected, goes to San Juan Hill, comes here, then gets stolen—twice.”

 

According to a 2006 article in Man at Arms magazine by Philip Schreier [PDF], the senior curator at the National Rifle Association’s National Firearms Museum, the Colt has indeed had a hectic life. Manufactured in Hartford, Connecticut, in March 1895, the firearm (serial number 16,334) was delivered from the factory to the U.S. government and wound up on board the USS Maine when the ship was first commissioned in September of that year. The gun was considered ship property and remained on board until February 15, 1898, when the Maine exploded in Havana, Cuba. Many blamed the Spanish for the explosion, and hundreds of men lost their lives.

At the time, Roosevelt’s brother-in-law, William S. Cowles, was heading the U.S. Naval Station. He and his team were sent to the site to inspect the scene. Divers retrieved bodies and other items, including the Colt. Knowing Roosevelt—at the time the Assistant Secretary of the Navy under President William McKinley—was fond of weapons and a genial warmonger, Cowles gave it to him as a gift. While it was perfectly functional, it's clear Cowles intended the Colt to serve to honor the memory of those who had died.

The Colt revolver that once belonged to Theodore Roosevelt is pictured on display at Sagamore Hill
Roosevelt's Colt revolver on display at Sagamore Hill.
Courtesy of Sagamore Hill National Historic Site

Roosevelt later took it into battle, using it to shoot at enemy forces. (He would earn a posthumous Medal of Honor in 2001 for his actions that day.) Shortly after, the weapon was inscribed to represent its participation in two exceptional events. On one side of the handle:

From the sunken battle ship Maine.

On the other:

July 1st 1898, San Juan, Carried and used by Col. Theodore Roosevelt.

Following Roosevelt’s death in 1919, the Sagamore Hill estate in Oyster Bay, New York, was home to his wife, Edith, until her death in 1948. The property was later donated to the National Park Service in 1963 and became Sagamore Hill National Historic Site. The gun went on display along with many of the former president's other personal effects, eventually settling in the Old Orchard near the uniform he wore during the Battle of San Juan Heights.

In 1963, the Colt came up missing for the first time. With no guard or contemporary security system in place, someone nicked it from the building. Fortunately, it was soon found in the woods behind the museum, slightly rusty from being exposed to the elements but otherwise unharmed. The perpetrator may have gotten spooked after taking off with it and decided to abandon the contraband, but no one had a chance to ask—he or she was never caught.

By April of 1990, the gun and uniform were in a display case borrowed from the American Museum of Natural History. While somewhat of a deterrent, it didn't offer much in the way of security. “The case could be lifted and the lock just popped open,” Sarna says.

Sarna had just started at the museum back then. According to her, the case had either been disturbed by a thief or possibly left open by someone cleaning the display, inviting a probing set of hands. Either way, the gun disappeared—but it wasn’t immediately obvious.

“No one was sure what day it had happened,” she says; the best guess was that the theft had occurred between April 5 and 7. “You’d have to walk into the room it was in and look in the case. If you’re just walking by, you’d see the uniform, but not necessarily the gun.”

It was chief ranger and head of visitor services Raymond Bloomer Jr. and ranger John Foster who discovered the theft one morning. The lock had been popped but the glass was not broken. Sarna and the other employees conducted a search of the property, believing that perhaps someone had taken the Colt out for cleaning. When that failed to produce any results, they notified the National Park Service, which is the first line of investigation for theft on government-owned park property. The NPS, in turn, contacted local authorities in Nassau County and Cove Neck, New York. Soon, the FBI was involved.

Predictably, law enforcement looked at museum employees with a critical eye. “There were all different types of people here interviewing us,” Sarna says. “In museums, the majority of thefts are an inside job.”

Theodore Roosevelt is pictured in uniform
Roosevelt in uniform while leading the Rough Riders.
Wikimedia Commons // Public Domain

Park ranger and museum staffer Scott Gurney, who was hired in 1993, tells Mental Floss that the suspicion cast over employees—none of whom were ever implicated—remained a sore spot. “I found an old police report about it in a desk and asked a ranger about it,” Gurney says. “He got really mad at me and told me not to bring it up again. It was kind of a black eye for the people working there.”

As Sarna and the others set about installing a security system in the museum, the FBI started casting a wide net to locate the weapon, which was uninsured. “It was basically a shoplifting incident,” Robert Wittman, a retired FBI agent in their art crimes division who worked on the case from the mid-1990s on, tells Mental Floss. “It wasn’t all that unusual. In the 1970s and 1980s, lots of small museums were getting hit.” Worse, one of the museum staff working the front desk within view of the display was, according to Gurney, legally blind. The lack of security, Wittman says, was in part because pieces weren’t initially all that valuable on the collector’s market.

The Colt was unique in that it was so readily identifiable. Thanks to the inscriptions, it would invite questions if the thief attempted to sell the weapon. Any attempt to alter it would destroy its cultural value and defeat the purpose of taking it. The FBI sent notices to gun dealers and monitored gun shows in case it turned up. Nothing seemed promising.

“We heard things constantly,” Sarna says. “Someone said it was seen in Europe. Someone else said it was in private hands, or that a collector had it.” Later, when the museum was able to start receiving emails via the burgeoning world of the internet, more tips—all dead ends—came in. Another rumor had the gun being bought during a gun buyback program in Pennsylvania and subsequently destroyed. This one looked promising, as it bore the same serial number. But it turned out to be a different model.

A reward was offered for information leading to the gun’s retrieval, with the amount eventually climbing to $8100. But that still wasn’t sufficient for the gun to surface. “We really had no lines on it,” Wittman says.

Then, in September 2005, Gurney began receiving a series of calls while working in the visitor’s center. The man had a slight speech impediment, he said, or might have been intoxicated. Either way, he told Gurney he knew where the gun was. “He told me it was in a friend’s house, but that he didn’t want to get the friend in trouble.”

The man continued calling, each time refusing to give his name and ignoring Gurney’s suggestion to simply drop the gun in the mail. The man also spoke to Amy Verone, the museum’s chief of cultural resources. He was certain he had seen Theodore Roosevelt’s gun, wrapped in an old sweatshirt in DeLand, Florida. He described the engravings to Verone, who hung up and immediately called the FBI.

 

After more calls and conversations, including one in which Gurney stressed the historical importance of the weapon, the caller eventually relented and gave his information to the FBI. A mechanical designer by trade, Andy Anderson, then 59, said he had seen the gun the previous summer. It had been shown to him by his girlfriend, who knew Anderson was a history buff. She told Anderson her ex-husband had originally owned the firearm. It had been in a closet wrapped in a sweatshirt before winding up under a seat in the woman’s mini-van, possibly obscured by a dish towel. Presumably, her ex had been the one who had stolen it back while visiting the museum as a New York resident in 1990.

Theodore Roosevelt's Rough Riders uniform is pictured on display at Sagamore Hill
Roosevelt's Rough Riders uniform sits on display at Sagamore Hill next to his Colt.
Courtesy of Sagamore Hill National Historic Site

After Anderson contacted Sagamore Hill, FBI agents were dispatched from the Daytona Beach office to DeLand to question Anderson. He obtained the revolver from his girlfriend and handed it over, though he apparently tried to convince the FBI to let him return the weapon without disclosing the thief’s identity. The FBI didn’t agree to an anonymous handoff, however, and in November 2006 the ex-husband, a 55-year-old postal employee whom we’ll refer to as Anthony T., was charged with a misdemeanor in U.S. District Court in Central Islip, New York.

Wittman remembers that the split between Anthony T. and his wife had been acrimonious and that she had no involvement in the theft. “We were not going to charge her with possession of stolen property,” he says.

Wittman went to Florida to pick up the Colt and brought it back to the Philadelphia FBI offices, where it was secured until prosecutors authorized its return to Sagamore Hill on June 14, 2006. Schreier, the NRA museum’s senior curator, arrived at Sagamore Hill with Wittman, FBI Assistant Director in Charge in New York Mark Mershon, and Robert Goldman, the onetime U.S. assistant attorney and art crime team member who was himself a Roosevelt collector and had doggedly pursued the case for years. When Schreier confirmed its authenticity, the gun was formally turned back over.

There was no reasonable defense for Anthony T. In November of that year, he pled guilty to stealing the Colt. While he was eligible for up to 90 days in jail and a $500 fine, Anthony T. received two years of probation along with the financial penalty and 50 hours of community service. According to Wittman, cases of this sort are based in part on the dollar value of the object stolen—the weapon was valued at $250,000 to $500,000—not necessarily its historical value. “The sentencing may not be commensurate with the history,” Wittman says.

From that perspective, the Colt takes on far greater meaning. It was used in a battle that cemented Roosevelt’s reputation as a leader, one credited with helping bolster his national profile. It was used in commission in the death of a human being, giving it a weight and history more than the sum of its metal parts.

“It’s looked at as one of his greatest triumphs,” Sarna says of the Rough Riders and the U.S. victory in the 1898 conflict. “It brought us into a new century and out of isolationism.”

It’s once more on display at Sagamore Hill, this time under far better security and surveillance. (Though the museum is still vulnerable to heists: a reproduction hairbrush was recently swiped.) Sarna, who wasn’t sure if she would ever see the Colt again, is glad to see it where it belongs.

“Thank goodness they got divorced,” she says.

It’s not publicly known why Anthony T. felt compelled to take the Colt. Wittman describes it as a crime of opportunity, not likely one that was planned. After the plea, Anthony T. was let go from his job, and his current whereabouts are unknown. Prosecutors called it a mistake in judgment.

Anderson, the tipster, lamented any of it had to happen. “We’re talking about a mistake he made 16 years ago,” Anderson told the Orlando Sentinel in November 2006. “I have no regrets, but I never meant to cause trouble. I wish Anthony the best.”

If Anthony T. was an admirer of Roosevelt’s, he might find some poetic peace in the fact that he pled guilty to violating the American Antiquities Act of 1906, which was instituted to prevent theft of an object of antiquity on property owned by the government.

That bill was signed into law by Theodore Roosevelt.

15 Amazing Facts About the Washington Monument

iStock/Sean Pavone
iStock/Sean Pavone

It's the tallest building in Washington, D.C. and it honors the first U.S. president, George Washington. Here are a few more Washington Monument facts to celebrate the anniversary of its completion on December 6, 1884.

1. Building a monument to George Washington was not a unanimously supported idea.

Today, trumpeting George Washington as a hero and a symbol of national pride isn’t going to start any arguments. In the 19th century, however, Washington’s approval rating was far from 100 percent. The very idea of constructing a monument to honor the former president felt like an affront to the Democratic-Republicans—the opposing party to the Washington-aligned Federalists—who both favored Thomas Jefferson over Washington and decried such tributes as unseemly and suspiciously royalist.

2. It took almost 40 years to complete the Washington Monument's construction.

After decades of deliberation about where to build a monument to George Washington, what form it should take, and whether the whole thing was a good idea in the first place, the foundation for a great stone obelisk was laid at the center of Washington, D.C.’s National Mall on July 4, 1848. Although the design looks fairly simple, the structure would prove to be a difficult project for architect Robert Mills and the Washington National Monument Society. Due to ideological conflicts, lapses in funding, and disruptions during the Civil War, construction of the Washington Monument would not be completed until February 21, 1885. The site opened to the public three years later. 

3. A coup within the Washington National Monument Society delayed construction.

In 1855, an anti-Catholic activist group nicknamed the Know-Nothings seized control of the 23-year-old Washington National Monument Society. Once in power, the Know-Nothings rejected and destroyed memorial stones donated by Pope Piux IX. The Know-Nothing affiliation cost the project financial support from the public and from Congress. In 1858, after adding only two layers of masonry to the monument, the Know-Nothings abdicated control of the society. 

4. Early ideas for the Washington Monument included statues, Greek columns, and tombs. 

Before the society settled on building an obelisk, several other ideas were suggested as the visual representation of George Washington’s grandeur. Among them were an equestrian statue of the first president (which was part of Pierre L’Enfant’s original plan for Washington, D.C.), a separate statue situated atop a classical Greek column, and a tomb constructed within the Capitol building. The last idea fell apart when Washington’s family was unwilling to move his body from its resting place in Mount Vernon.

5. Later design plans included an elaborate colonnade ...

Even after Mills’ obelisk model had been accepted, a few flashier design elements received consideration as possible additions to the final project. Mills had originally intended to surround the tower with a circular colonnade, featuring not only a statue of George Washington seated gallantly atop a chariot, but also 30 individual statues of renowned Revolutionary War heroes. 

6. ... and an Egyptian sun.

Mills placed a winged sun—an Egyptian symbol representing divinity—above the doorframe of the Washington Monument’s principal entrance. The sun was removed in 1885. 

7. The monument originally had a flat top.

It has become recognizable for its pointed apex, but the Washington Monument was originally designed to bear a flat top. The monument's design was capped with a pyramid-shaped addition in 1879.

8. The engineer who completed the Washington Monument asked the government to supply his workers with hot coffee.

Several years after the 1855 death of Mills, Col. Thomas Lincoln Casey Sr., chief of engineers of the United States Army Corps of Engineers, assumed responsibility for completing the Washington Monument. Among his most memorable orders was an official request to the U.S. Treasury Department to supply his workers—specifically those assigned to the construction of the monument’s apex—with “hot coffee in moderate quantities.” The treasury complied. 

9. Dozens of miscellaneous items are buried beneath the monument.

On the first day of construction, a zinc case containing a number of objects and documents was placed in the Washington Monument’s foundation. Alongside copies of the Constitution and the Declaration of Independence are a map of the city of Washington, publications of Census data, a book of poems, a collection of American coins, a list of Supreme Court justices, a Bible, daguerreotypes of George Washington and his mother Mary, Alfred Vail’s written description of the magnetic telegraph, a copy of Appleton’s Railroad and Steamboat Companion, and an issue of the arts and leisure magazine Godey’s Lady’s Book, among many other items.

10. Some of the Washington Monument's memorial stones bear strange inscriptions.

The vast majority of the 194 memorial stones lining the Washington Monument are not likely to inspire confusion. Common inscriptions celebrate George Washington, the country, and the states they represent. However, a few of the monument’s stones bear engravings of a more curious variety. A stone donated by a Welsh-American community from New York reads (in Welsh), “My language, my land, my nation of Wales—Wales for ever.” Another stone from the Templars of Honor and Temperance articulates the organization’s rigid support of Prohibition: “We will not make, buy, sell, or use as a beverage any spirituous or malt liquors, wine, cider, or any other alcoholic liquor, and will discountenance their manufacture, traffic, and use, and this pledge we will maintain unto the end of life.” 

11. The apex was displayed at Tiffany's before it was added to the structure.

The men who created the Washington Monument, though reverent in their intentions, were hardly above a good publicity stunt. William Frishmuth, an architect and aluminum magnate connected to the project, arranged for the pointed aluminum top of the monument to enjoy an ornate two-day display at New York City’s luxury jewelry store Tiffany’s. The apex was placed on the floor of the storefront so that shoppers could claim to have walked “over the top of the Washington Monument.” 

12. Opening ceremonies attracted several big-name guests.

Among the 20,000 Americans present for the beginning of construction in 1848 were then-President James K. Polk, three future presidents (James Buchanan, Abraham Lincoln, and Andrew Johnson), former first lady Dolley Madison, Alexander Hamilton's widow Elizabeth Hamilton (John Quincy Adams' widow was too sick to attend), and a bald eagle.

13. The Washington Monument was the tallest structure in the world for about six months.

Upon its official opening on October 9, 1888, the Washington Monument—standing an impressive 555 feet high—boasted the superlative of tallest manmade structure on Earth. The honor was short-lived, however, as the following March saw the unveiling of the Eiffel Tower, which topped out at 986 feet. 

14. It is still the tallest of its kind.

As of 2019, the Washington Monument still reigns supreme as both the world’s tallest all-stone structure and the tallest obelisk. (The stone San Jacinto Monument in Texas is taller, but it sits on a concrete plinth.)

15. A few decades after construction, the monument caught "tuberculosis."

Wear and tear had begun to get the best of the Washington Monument by the early 20th century, prompting an exodus of the cement and rubble filler through the structure’s external cracks. The sweating sensation prompted John S. Mosby Jr., author of a 1911 article in Popular Mechanics, to nickname the phenomenon “geological tuberculosis.”

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