Who was offered but declined the position of Vice President by two different US Presidential candidates who would win the general election?

In 1836, Daniel Webster was one of four Whig Party candidates to run for the office of President, but he managed to gain the support only of Massachusetts. This was the first of three unsuccessful attempts at gaining the presidency. In 1839, the Whig Party nominated William Henry Harrison for president. Webster was offered the vice presidency, but declined. Harrison won the election but died one month after his inauguration. If Webster had accepted the offer, he would have become president after all.

In the United States presidential election of 1848, he sought the Whig Party's nomination for President but was beaten by the military hero Zachary Taylor. Webster was once again offered the Vice-Presidency, but he declined saying, "I do not propose to be buried until I am really dead and in my coffin."The Whig ticket won the election. President Taylor died 16 months after the inauguration. This was the second time a President who offered Webster the chance to be Vice President died. Once again, Webster would have become president.