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.
French migration to the United Kingdom
Much of the UK's medieval aristocracy was descended from Franco-Norman migrants to England from the time of the Norman Conquest. Prominent families of the period, include the Grosvenor family originally, "Gros Veneur" (in Norman) "great hunter": their influence can be found throughout central London with many roads, squares and buildings bearing their family names, such as Grosvenor Square and Grosvenor House. Ancestors of the Molyneux family, the Earls of Sefton who arrived in England around the time of the Norman Conquest, bore the name "de Molines": they came from Molineaux-sur-Seine, near Rouen, in Normandy where they resided in the Château de Robert-le-Diable also known as Château de Moulineaux. Other well known names are the Beauchamps (Beecham), Courtois and Le Mesurier. Some British people are descended from the Huguenots, French Protestants who in the 16th and 17th centuries fled religious persecution in France. Although a substantial French Protestant community existed in London from the sixteenth century, the suppression of Protestantism in France in the 1680s led to a mass migration of predominantly Calvinist refugees, most of whom settled in London, partly in Spitalfields in the east and Soho in the west. The French protestant community was one of the largest and most distinctive communities in the capital in the 18th-century. Later, during and after the French Revolution, there was also an influx of French Catholics.