There are a few old rural isolated communities in America, atleast according to the Internet. Some off the more famous include the Lumbee and the Melungeons both believed to be tri- racial isolate groups with the Lumbees even rumored to be descendents of the Roanoke Colony(highly unlikely I imagine). Some say there are 100's of them across the South, not sure I buy that, but other groups include RedBones (SC & LA), Turks/Free Moors(SC), and the Jackson Whites(New Jers). Another group, which they say don't exist anymore are the Brass Ankles. My grandmother used to say "he/she is dumb ass a brass ankle" I wonder if that is related to them. Has anyone ever met on of these people? I never knowingly have. Unless you count Gullah/Geechie people and Creoles but the former are not tri-racial and the latter are not isolated for the most part. In the first federal census of 1790, the ancestors of the Lumbee were among those enumerated as "free persons of color", a category used to describe all free non-whites (including mixed-race European-Africans, Indians, and mixed-race European-Indians). A free person of color was the category for mixed-race persons not identifiably white nor a slave. In subsequent censuses, these people's names appeared under the category: "all other free persons" or "Mulatto."...Until 1787 it was part of Bladen County. When North Carolina Governor Matthew Rowan dispatched surveying parties in 1753 to count Indians in the state, the report stated there were "no Indians in the county." Colonial tax records from 1768 to 1770 identified Thomas Britt as the only Indian in Bladen County. Britt is not a surname traditionally associated with Lumbee families. Inhabitants of Bladen County with surnames that have been traditionally associated with Lumbee families were classified as "Mullato" in the tax records. The likely background to the mixed-race families later to be called "Melungeons" was the emergence in the Chesapeake Bay region in the 17th century of what the historian Ira Berlin (1998) calls "Atlantic Creoles." These were the descendants of unions of freed slaves (sometimes of mixed race) and indentured servants, who were primarily of English, Northern European and West African ancestry.