Ohio outlaws slavery---

http://www.thehistorymakers.com/timeline/index.asp?year=1802&Category=

but this was already a law--(Found on several sites)

http://www.absolutemichigan.com/dig/michigan/slavery-in-the-northwest-territory/

As the Continental Congress discussed the Northwest Ordinance, a Massachusetts delegate suggested adding a provision banning slavery in the Northwest Territory, which included the future states of Ohio, Indiana, Illinois, Wisconsin and Michigan. The Ordinance, including this measure, was adopted on July 13, 1787. It was the first time the federal government set limits on the expansion of slavery. However, despite this ban, a small number of slaves continued to live in the Northwest Territory,
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So Mr. Chase was partly right on no slaves, then there was the Fugitive Slave Laws would have been in effect

GP