"..President.. Did he own slaves.. Actions.. Thomas Jefferson ..Yes ..TJ inherited many slaves. His wife brought a dowry of more than 100 slaves, and he purchased many more throughout his life. At some points he was one of the largest slaveowners in Virginia.
In 1790 TJ gave his newly married daughter and her husband 1000 acres of land and 25 slaves.(Miller)
In 1798 TJ owned 141 slaves, many of them elderly. Two years later he owned 93. (Bigelow,p537.)
One of TJ’s slaves was Sally Hemings, allegedly the half-sister of his deceased wife. During TJ’s presidency a rumor appeared in print that she was his mistress. TJ denied this story, which was also passed on as Hemings family tradition. The youngest of Heming’s six children (and the only one whose paternity can be traced through DNA) definitely descended from the Jefferson line, either through TJ, his brother Randolph, or one of Randolph’s sons. TJ was in the vicinity of SH during each period of conception.(See Miller, p148-176:.) For a discussion of the DNA issue see: http://tinyurl.com/ckfkk2
TJ freed one of Heming’s children and allowed another to run away unpursued. Both of them were light enough to successfully pass for White.(See Miller, p165.)
TJ freed five slaves in his will, all members of the Hemings family. Sally was not among them; TJ’s daughter Martha freed her years later.(See Miller, p168.)
1776: (King George III) has waged cruel war against human nature itself, violating its most sacred rights of life and liberty in the persons of a distant people who never offended him, captivating & carrying them into slavery in another hemisphere, or to incur miserable death in their transportation thither. This piratical warfare, the opprobrium of infidel powers, is the warfare of the CHRISTIAN king of Great Britain. Determined to keep open a market where MEN should be bought and sold, he has prostituted his negative for suppressing every legislative attempt to prohibit or to restrain this execrable commerce: and that this assemblage of horrors might want no fact of distinguished die, he is now exciting those very people to rise in arms against us, and to purchase that liberty of which he has deprived them, by murdering the people upon whom he also obtruded them thus paying off former crimes committed against the liberties of one people, with crimes which he urges them to commit against the lives of another.” -from TJ's draft of the Declaration of Independence.This paragraph was voted down by the Congressional Congress..": http://home.nas.com/lopresti/ps.htm