List of presidents of the United States by age
The median age upon accession to the presidency is 55 years and 3 months. This is how old Lyndon B. Johnson was at the time of his inauguration. The youngest person to assume the office was Theodore Roosevelt, who became president at the age of , following William McKinley's assassination; the oldest was Donald Trump, who was old at his inauguration. The youngest person to be elected president was John F. Kennedy, at of age on election day; the oldest was Ronald Reagan, who was old at the time of his election to a second term.
Charles Leroux
It is rumoured in Estonia that Leroux was the nephew of Abraham Lincoln, the 16th President of the United States. That is not possible because Lincoln's only sister Sarah Lincoln Grigsby died in 1828 and his only brother Thomas Lincoln Jr. in 1812, when 3 days old.