Eliza or Elizabeth Calhoun was born the 2nd child of Dr. Parker Benjamin Calhoun in 1796 and married Warren Hardin on 4-18-1815. She had two sisters and four brothers and lived in Kentucky. Dr. Parker Calhoun's parents were John Calhoun Sr. 1751-1817 married to Margaret Parker 1754-1827. John's parents were Samuel Calhoun 1721-1773 and Mary Clendennin 1724-1805 with 15 children.
This information is found in "Our Calhoun Family", by Orval Calhoun, Volumes 2, page 368, and Volume 3, page 445.