The answer is when Samuel sees an African american, he sees "a descendant of Ham".
Ham as indicated by the Table of Nations in the Book of Genesis, was a child of Noah and the father of Cush, Mizraim, Phut and Canaan.
Ham's descendants are interpreted by Moses, Flavius Josephus and others as having populated Africa and abutting parts of Asia. The Bible alludes to Egypt as "the place that is known for Ham"
