The above notes and book of the author mentioned have been debunked.
Search: Lincoln's lost speech for the story.
Hi UB and welcome back to CWT. Great having you back.
Debunked by whom?
But we will go with what you have stated.
I will say then, that I am not nor ever have been in favor of bringing about in any way, the social and political equality of the white and black races, that I am not, nor ever have been in favor of making voters of the negroes, or jurors, or qualifying them to hold office, or having them to marry with white people. I will say in addition, that there is a physical difference between the white and black races, which I suppose, will forever forbid the two races living together upon terms of social and political equality, and inasmuch, as they cannot so live, that while they do remain together, there must be the position of superior and inferior, that I as much as any other man am in favor of the superior position being assigned to the white man. I say in this connection, that I do not perceive, however, that because the white man is to have the superior position, that it requires that the negro should be denied everything.
Source: The Lincoln-Douglas Debates: The First Complete, Unexpurgated Text, p. 189, Editor Harold Holzer. Oxford University Press. Kindle Edition.
I am going out on a limb here by assuming "they" have not debunked this................Yet?
I would Honestly like to read more on the debunking of Henry C. Whitney's Vols.