Eleven presidents have held the distinction while in office. In the cases of George Washington, William Howard Taft, Woodrow Wilson, and Ronald Reagan this occurred upon their inauguration as they were older than their living predecessors (or, in Washington's case, had no predecessors). In the cases of John Adams, Ulysses S. Grant, Theodore Roosevelt, Herbert Hoover and Richard Nixon, this happened at the same time as their becoming the only living president; in the cases of Andrew Jackson and Benjamin Harrison, the only other living president at the time was a younger predecessor, John Quincy Adams and Grover Cleveland respectively. By contrast, the president who acquired the distinction furthest from his time in office was Jimmy Carter, who had been retired for when he became the oldest living president, upon the death of George H. W. Bush.