Woodlawn plantation in Alexandria, Va. was home to the man who designed the us capital........


Eager to achieve fame (and undoubtedly some expiation) in the cause of anti-slavery, he emigrated to the United States of America in the fall of 1786, moving to Philadelphia. His unsuccessful efforts to lead a contingent of free black Americans to join the small British settlement of London blacks at the mouth of the Sierra Leone River in West Africa were looked on favorably by Philadelphia's Quaker establishment. Some leaders of the new republic—notably James Madison, with whom he lodged at Mrs. Mary House's prominent boarding establishment in 1787 and 1788—were cognizant of Thornton's abolitionist activities. However, after moving to the City of Washington, he took advantage of slavery. According to a diary his wife kept in 1800, he frequently shopped for slaves and bought and hired them. In 1788, he became an American citizen. Thornton married Anna Maria Brodeau, daughter of a school teacher, in 1790.^[6]