Martha Jefferson

Martha Skelton Jefferson ("née" Wayles; October 19 or 30, 1748 – September 6, 1782) was the wife of Thomas Jefferson. She served as First Lady of Virginia during Jefferson's term as Governor from 1779 to 1781. She died in 1782, 19 years before he became President. 
Of the six children born to Thomas and Martha, only two survived to adulthood, Martha and Mary. Martha died four months after the birth of her last child. The couple's letters to one another were burned, though by whom is unknown, and Thomas rarely spoke of her, so she remains a somewhat enigmatic figure. (Similarly, Jefferson did not speak much of his mother, Jane Randolph Jefferson, or his best friend.)
It is widely held that Thomas had a long-standing relationship and children with Martha's half-sister, Sally Hemings, a favored slave who was three-quarters white.
Early life and education.
Martha Wayles was born on October 19 or 30, 1748, the daughter of Martha Eppes Wayles (1721–1748) and John Wayles (1715–1773). near Colonial Williamsburg in Charles City County, Virginia. Their only child, Martha, was nicknamed "Patty". John was a Lancaster-born emigrant to the Thirteen Colonies, working as an attorney in addition to being a prosperous planter and slave trader. In addition, he was an agent for the Farrell and Jones company based in Bristol, undertaking activities such as debt collection on their behalf. Martha Eppes Wayles was a daughter of Francis Eppes, a settler of the Bermuda Hundred, an early Virginian colony established along the Appomattox River. While little is known of Martha Eppes Wayles' life, she had an appreciation for fine literature, such as her favorite novel, "Tristram Shandy" and "Les Aventures de Télémaque." (Her rebound version of the book, "The Adventures of Telemachus", contains her signature on the title page and resides at the Library of Congress). 
Martha Wayles had two stepmothers, neither of whom lived long after their marriages to John Wayles, and through one stepmother she had four half-sisters.