BURR, THEODOSIA (1783-1813), brilliant and accom plished daughter of Aaron Burr, was after Mrs. Burr's death the mistress of the Burr mansion, and, although very young, filled that station with grace and dignity. In 1801 she married Joseph Allston, wealthy planter and later governor of South Carolina. She was largely instrumental in paving the way for her father's return from Europe, and embarked from Charleston with her son and only child to meet him, but the vessel in which she sailed was never heard from and probably foundered in a storm off Cape Hatteras.