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.
Indian Moors
The 1911 Census separated the Tamils into Ceylon Tamils and Indian Tamils and the Moors into Ceylon Moors and Indian Moors. This was due to the influx of Indian Labourers, that comprised both Moors and Tamils, in to the plantation regions of Sri Lanka, who had to be distinguished separately.