Henry Lewis
Henry Lewis was a slave who escaped from William Jarvis, a provincial official in what was then Upper Canada. John Graves Simcoe, the first Lieutenant Governor of Upper Canada enacted a law in the first year of his administration, restricting the slavery, in Upper Canada - An Act to Prevent the further Introduction of Slaves and to limit the Term of Contracts for Servitude. While the law is often characteried as outlawing slavery, it didn't go that far. It did prohibit the slavery of new arrivals. Individuals who already kept slaves were grandfathered, and many of Simcoe's closest aides and advisors, like Jarvis, did own slaves. Many of these men were United Empire Loyalists, Americans, who had sided with the central government, back in the United Kingdeom, not the rebels, during the American Revolution. Following the revolution, when the winners regarded them as traitors, they were encouraged to resettle in Canada, and those who held slaves in America brought those slaves with them.
Lewis arrived with his master, and, when Simcoe restricted bringing in new slaves, he fled to New York state.
http://omeka.tplcs.ca/virtual-exhibits/exhibits/show/freedom-city/freedom-seekers FREEDOM-SEEKERS