Mary or Maria (Polly) Jefferson Eppes (1778-1804) was the fourth child of Thomas Jefferson and Martha Wayles Skelton Jefferson and the younger of their only two children to survive to adulthood. Thomas Jefferson's eldest daughter, nearly ten years old when her mother … No known eyewitness accounts were written at the time of the event. The best source we have for a description of Mrs. Jefferson's death comes from Martha Jefferson Randolph. Sally's mother Betsy or Betty was said to be the daughter of a black slave woman and a white ship captain; Betsy's children were said to have been fathered by her owner, John Wayles, making Sally a half-sister of Jefferson's wife. Following her mother's death in 1782, Polly was sent to stay with her aunt, Elizabeth Wayles Eppes. Therefore, we cannot precisely determine Mrs. Jefferson's sickroom. She was a slave owned by Thomas Jefferson, inherited through his wife Martha Wayles Skelton Jefferson (October 19/30, 1748–September 6, 1782) when her father died. Martha Jefferson was the wife of Thomas Jefferson, the third president of the United States.She did not manage to serve the country as the First Lady of the United States as she died 19 years before her husband became President. Martha Wayles Skelton Jefferson died at Monticello on September 6, 1782. However, Martha managed to serve as First Lady of Virginia, and her service spanned from 1779 to 1781. Martha's father remarried Mary Cocke of Malvern Hill and the marriage produced Marth's half-sister Elizabeth, who married Martha's cousin and became the mother of John Wayles Eppes. Genealogy profile for Martha Skelton Jefferson ... Martha's mother died when Martha was three weeks old. Martha Wayles Skelton Jefferson was the wife of Thomas Jefferson.
 Her mother was the daughter of a wealthy lawyer and her father served numerous functions in the emerging republic, ultimately becoming the third president of the United States. Martha (“Patsy”) Jefferson was born at Monticello in Albemarle County, Virginia, one of the six children of Thomas and Martha Wayles Jefferson.