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| Abraham Lincoln, Late 30s |
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| Barack Obama, Age 18 |
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| Bill Clinton, Age 22 And 26 |
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| Calvin Coolidge, Between 19 And 23 Years |
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| Donald Trump, Age 20 |
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| Dwight Eisenhower, Age 25 and 29 |
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| Franklin Roosevelt, Age 18 |
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| George H. W. Bush, Age 18 |
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| George W. Bush, Age 19 |
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| Gerald Ford, Age 18 And 20 |
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| Harry Truman, Age 22 And 33 |
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| Herbert Hoover, Age 25 |
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| James Garfield, Age 16 |
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| Jimmy Carter, Age 18 |
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| John F. Kennedy, Age 21 And 20 |
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| Lyndon Johnson, Age 18 |
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| Richard Nixon, Age 20 |
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| Ronald Reagan, Age 29 |
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| Rutherford B. Hayes, Age 30 |
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| Theodore Roosevelt, Age 20 |
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| Ulysses S. Grant, Age 23 |
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| Warren G. Harding, Age 21 |
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| William Mckinley, Age 21 |
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| Woodrow Willson, About 19 Years Old |
