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.
Islam in Delaware
It is possible that the history of Islam in Delaware extends as far back as the origin of the Delaware Moors, a mixed-race community in Kent and Sussex counties whose origins are variously attributed to 18th century shipwrecked Moorish pirates, wives brought over from the 17th century British evacuation of Tangier, or a legendary romance between a European colonist and an enslaved Moorish prince. The community itself lays claims to a Muslim origin dating back to Colonial times.
There is a community of converted Muslims; an article in "The News Journal" by Summer Harlow in September 2007 highlights the transition many are making.