"Professor Carver, like the other men I have mentioned, is of unmixed African blood, and is one of the most thoroughly scientific men of the Negro race with whom I am acquainted. Whenever anyone who takes a scientific interest in cotton. Whenever any one who takes a scientific interest in cotton growing, or in the natural history of this part of the world, comes to visit Tuskegee, he invariably seeks out and consults Professor Carver."
January 1, 1970
https://en.wikiquote.org/wiki/George_Washington_Carver