7 Harold Holt
Harold Holt, the 17th Australian Prime Minister went missing while swimming at Cheviot Beach near Port Victoria. along with his neighbor and supposed lover.
All of the sudden he decided to go for a swim all by himself. But shortly after this, he went missing in the waves. Holt hasn't been found despite one of the largest search parties in Australia's history.
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8 Jimmy Hoffa
With a checkered past that included convictions for fraud, jury tampering, and bribery, it came as no surprise for many that Jimmy Hoffa made some enemies.
Hoffa was eventually elected president of the IBT but his illegal dealings led to an intense investigation from Robert F Kennedy and he was eventually sentenced to a total of 13 years in prison.
Office sentence was commuted by Richard Nixon after less than 5 years served. He enjoyed nearly 4 years of freedom before disappearing from an affluent Detroit suburb on July 30th, 1975.
Apparently, he was scheduled to meet two organized crime bosses. Hoffa was legally declared dead 7 years after his disappearance and speculations of his faith continue to this day.
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9 Andrew Carnegie Whitfield
Andrew Carnegie Whitfield was the nephew of American steel magnate Andrew Carnegie. He was a Princeton graduate and a successful business executive that enjoyed a hobby as an aviator in his tailor club airplane.
He took off from a Roosevelt airfield on Long Island and was scheduled to land 20 minutes later in Brentwood, New York. But he was never heard of again and the plane was never located
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10 Amelia Earhart
In 1932 Amelia Earhart became the first civilian to receive the Flying Cross award. This was due to the fact that she was the first woman ever to fly across the Atlantic.
She grew up flying planes with her father but it was this event that propelled the pilot not only to stardom but also her eventual disappearance. Earhart vanished on July 2nd, 1937 while piloting and was never seen again.
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