Martha Jefferson Carr (May 29, 1746 - September 3, 1811) was Thomas Jefferson's younger sister. She married Jefferson's close friend, Dabney Carr, on July 20, 1765. In the years after her husband's untimely death in 1773, Martha often stayed at Monticello for extended periods with her six children.
Martha Jefferson Carr died in September 1811 from what her older brother called a "wasting complaint which has for two or three years been gaining upon her." She was buried in the Jefferson family graveyard at Monticello, "by the side of the companion who had been taken from her 38. years before."1