List of vice presidents of the United States - Wikipedia
https://en.wikipedia.org/wiki/List_of_vice_presidents_of_the_United_States
WEBNine vice presidents have ascended to the presidency in this way: eight ( John Tyler, Millard Fillmore, Andrew Johnson, Chester A. Arthur, Theodore Roosevelt, Calvin Coolidge, Harry S. Truman, and Lyndon B. Johnson) through the president's death and one ( Gerald Ford) through the president's resignation.
DA: 12 PA: 72 MOZ Rank: 92