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.
Mouros
According to Galician, Asturian and Portuguese mythology, the Mouros are a race of supernatural beings which inhabited the lands of Galicia, Asturias and Portugal since the beginning of time. For unknown reasons they were forced to take refuge under the earth, and now they are usually seen by people in the surroundings of "castros" and long barrows. The Mouros work with gold, silver and gem stones with which they make up enormous treasures that are protected by cuélebres.