But James Lemen was not only a factor which saved the anti-slavery clause in the Ordinance of 1787, but there is no doubt, after putting all the facts together, ... that his anti-slavery mission to the Northwestern Territory was inspired by the same cause which finally placed the anti-slavery clause in the Ordinance, and that Lemen's mission and that clause were closely connected. Douglas, Trumbull, and Lincoln thought so, and every other capable person who had [been] or has been made familiar with the facts. Many of the old pioneers to whom the facts were known have informed me that all the statements as to Rev. James Lemen's anti-slavery teaching and preaching and forming his anti-slavery churches, and conducting the anti-slavery contest, and sending a paid agent to Indiana to assist the anti-slavery cause, were all true in every particular; and so the evidence outside and independently of that in the Lemen family notes is conclusive that Mr. Lemen created and organized the forces which finally confirmed Illinois, if not the Northwestern Territory, to freedom. But there was just one fact that made it possible for the old pioneer leader practically single handed and alone to accomplish such results; and that was because President Jefferson's great power was behind him, and through his secret influence Congress worked for the very purpose that Jefferson, more than twenty years before, had sent Lemen to Illinois, or the Northwestern Territory, to secure, namely, the freedom of the new {p.44} country. The claim that Mr. Lemen encompassed these great results would, of course, be ridiculous were it not known that the power of the government through Jefferson stood behind him. Hence Douglas, Trumbull, and others are correct, and I quite agree with them, that when you publish the old family notes on the matter, if, for reasons you state, you do not wish to publish Jefferson's letters to your father which concern the subject, it will be sufficient just to say he acted by and under his advice and aid, and people will accept it, as it is self-evident, because it is preposterous to hold that Mr. Lemen could have accomplished such results without some great power behind him. In conclusion, it is my judgment that your father's anti-slavery labors were the chief factor leading up to the free state constitution for Illinois.