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.
Roger Duff
Duff brought proof through his scientific papers of the existence of Moa-hunters as an early and distinct form of Māori culture. He developed and defended one of three major theories as to the origins of the Polynesian people: he believed, on the basis mainly on the physical differences, that the ancestors of the Polynesians could not have come from Asia via the Melanesian island. His main idea was that they had moved south from the area around Taiwan, through the Micronesian islands (mainly coral attols) to Fiji, Tonga and Samoa. From here they radiated out into the Pacific through Tahiti and the Society Islands: north and east to Hawaii; east and south to reach the Marquesas and Easter Island, and south and to the West to New Zealand.