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.
Jacqueline Kennedy Onassis
In 1952, Bouvier met then-Congressman John F. Kennedy at a dinner party in Washington. Following his election to the Senate in 1952, the couple married on September 12, 1953, in Newport, Rhode Island. They had four children, two of whom died in infancy. Following her husband's election to the presidency in 1960, Jacqueline Kennedy was known for her highly publicized restoration of the White House and emphasis on arts and culture, as well as for her style, elegance, and grace. Only 31 years old when her husband was inaugurated, she was the youngest First Lady since Frances Cleveland.