The political wife Abigail Fillmore died at the age of 55. Here is all you want to know, and more!
Biography - A Short Wiki
Wife of Millard Fillmore, who was the First Lady of the U.S. from 1850 to 1853. She had the shortest post-presidential life of any former First Lady, dying 26 days after leaving the White House.
She and her husband had one son and one daughter and lived in Buffalo, New York.