"The Judge has alluded to the Declaration of Independence, and insisted that negroes are not included in that Declaration; and that it is a slander upon the framers of that instrument, to suppose that negroes were meant therein; and he asks you: Is it possible to believe that Mr. Jefferson, who penned the immortal paper, could have supposed himself applying the language of that instrument to the negro race, and yet held a portion of that race in slavery? Would he not at once have freed them? I only have to remark upon this part of the Judge's speech, and that, too, very briefly, for I shall not detain myself, or you, upon that point for any great length of time, that I believe the entire records of the world, from the date of the Declaration of Independence up to within three years ago, may be searched in vain for one single affirmation, from one single man, that the negro was not included in the Declaration of Independence; I think I may defy Judge Douglas to show that he ever said so, that Washington ever said so, that any President ever said so, that any member of Congress ever said so, or that any living man upon the whole earth ever said so, until the necessities of the present policy of the Democratic Party, in regard to slavery, had to invent that affirmation."
January 1, 1970
https://en.wikiquote.org/wiki/United_States_Declaration_of_Independence