John Hanson was the president before George Washington and did not have a V.P.
Johnson, Filmore, Tyler, Arthur
There has never been a full 4 year period in U.S. history with the office of Vice President being vacant since 1789. (although John Tyler's tenure in office was only 32 days off and Franklin Pierce's vice president died 6 weeks into his term and never got to his office in Washington. ) 4 presidents served their entire tenure as president without a vice president, none of which served a four year term. The first was John Tyler, followed by Millard Fillmore, Andrew Johnson, and Chester A. Arthur.
No president really served a full term without a vice-president. Pierce came close since his vice-president died after a month in office and never made it to Washington because he was too sick to travel.
James Earl "Jimmy" Carter, Jr., the 39th President of the United States, served in office from January 20, 1977 to January 20, 1981. Carter never served as Vice-President.
Alexander Hamilton was never elected President (or Vice-President). He served as the first Secretary of the Treasury under President Washington from 1789 until his resignation in 1795, and never held public office again. Hamilton was killed as the result of a duel with Vice-President Aaron Burr in 1804.
Margaret Thatcher was never the president of any country; she served as the Prime Minister of the United Kingdom from 1979 to 1990. She was the first woman to hold that office in the UK. The title of "president" is not applicable to the UK, as it is a parliamentary democracy with a monarch as the head of state.
The only U.S. president who was never elected as president or vice president is Gerald Ford. He was a Congressman who was appointed to office. He ran for a second term, but lost to Jimmy Carter.
Thomas Jefferson was the first president who did not have a wife when he took office. He wife had died . James Buchanan was the first to have never been married when he took office.
Reagan never served in Congress. His only public office besides President was as governor of the state of California .
He caught pneumonia at his inauguration. He never really served as President since he died one month into office.
Andrew Johnson served less than 1 term in office, as US President. Johnson was never elected to office as President; the term he served, was the balance of President Lincoln's term, when he became President after President Lincoln was assassinated. President Johnson impeached during his 1 term as President, and was the first US President to be impeached. There were two attempts to impeach him, the second attempt was successful, and though he was impeached, he was not removed from office. (The Senate did not successfully vote to confirm the impeachment charges.) Johnson wanted to run for a second term as President but was not nominated by the Democratic party for President.
No, a President is only allowed 2 terms in office. President FDR was the only President that served more than two terms. He died in office in 22 April 1945. Vice President Harry Truman was elevated to the office of President the same day that FDR died.