The only person to become president without having been elected vice-president or president is Gerald Ford, who took over the office when Richard Nixon resigned. Ford was appointed vice-president when Nixon's first vice-president, Spiro Agnew, resigned.
John Adams, the second president, was the father of the sixth president, John Quincy Adams. Benjamin Harrison, the 23rd president, was the grandson of William H. Harrison, the ninth president.
The only bachelor president to occupy the white house was James Buchanan.
Only one president has been elected to two non-consecutive terms. Grover Cleveland served as the 22nd president, and again as the 24th president.
Among the professions of the men who have risen to our nation's highest public office, 27 were lawyers, 6 were soldiers, 6 were farmers, 3 were teachers, 3 were businessmen, 1 was a tailor, 1 was an editor, 1 was an author, and 1 was an actor.
The average age of all the presidents on the day of their inauguration is 55 years.
John Tyler, the 10th president, was the father of 15 children
Franklin D. Roosevelt was related by either blood or marriage to eleven other presidents: John Adams, John Quincy Adams, Ulysses Grant, William Henry Harrison, Benjamin Harrison, James Madison, Theodore Roosevelt, William Taft, Zachary Taylor, Martin Van Buren, and George Washington.
Four major cities are named for presidents:
2-Jefferson City, Missouri
The Lincoln Memorial (Washington, D.C.)
The Washington Monument (Washington, D.C.)
Mt. Rushmore (South Dakota)