James Buchanan was the only president not to be married while in office.
He, Grover Cleveland, was also the 24th President. He was the only President to marry for the first time while President and during his second term he became the only President to father a child while in office. He was the only President born in New Jersey.
Richard Nixon was the only US president to resign his office.
James Madison was the only president to engage in combat while in office. It was during the War of 1812.
The first president to die while in office was ninth president William Henry Harrison. Harrison died after only a few weeks in office.
He is the only president to be inaugurated in office. He took office July 2, 1881.
Ulysses S. Grant
John Tyler (March 29, 1790 - January 18, 1862) tenth President(1841-1845) was the first president to get married while in office.(Grover Cleveland was the second President to marry while in office, and the only President to get married in the White House itself. Woodrow Wilson also remarried while in office.)
James A. Garfield is the only president to inaugurated in office.
Richard Milhouse Nixon
George W Bush
Only Grover Cleveland the 22 and 24 president. He was married in office.
Only if the salary change was authorized by a previous congress and president in a previous term. Changes to the president's salary can not take place until after the sitting president has left office.
The first president to die in office was William Henry Harrison. President Harrison only got to serve a total of 31 days before he passed away.
The only president to have a child while serving his term was Grover Cleveland. The Cleveland's had a daughter named Esther who was born on September 9, 1893.
The first U.S. president to die in office was William Henry Harrison. He served only 31 days in office. He died of pneumonia and pleurisy on April 4, 1841.
Bill Clinton is the only president in history to be impeached. He's also the only president to ever cheat on the first lady while in office.
The only US president to resign from office was Richard M. Nixon.