African-American heritage of presidents of the United States
Calvin Coolidge's mother Victoria Moor was claimed to be of a mixed-race family in Vermont. Vaughn noted that her surname was derived from "Moor", a European term for people of North Africa. He did not note that another meaning of her surname is the landscape feature of moor or bog. People's surnames were often based on such landscape features when surnames became generally adopted in 14th century England. Moor/Moore is a common name in England, Scotland, and Ireland.
Berbers
The Berbers are the "Mauri" cited by the "Chronicle of 754" during the Umayyad conquest of Hispania, to become since the 11th century the catch-all term "Moros" (in Spanish; "Moors" in English) on the charters and chronicles of the expanding Christian Iberian kingdoms to refer to the Andalusi, the north Africans, and the Muslims overall.