Who has become President upon the death of a President?

Answer 1

Four were assassinated and were succeeded by their Vice Presidents:

• Andrew Johnson succeeded Abraham Lincoln.
• Chester Arthur succeeded James Garfield.
• Theodore Roosevelt succeeded William McKinley and,
• Lyndon Johnson succeeded John Kennedy.

Four President died of natural causes while in office and were succeeded by their Vice Presidents:

• John Tyler succeeded William Henry Harrison.
• Millard Fillmore succeeded Zachary Taylor.
• Calvin Coolidge succeeded Warren G. Harding and,
• Harry Truman succeeded Franklin Roosevelt.