Question: Driggers is a surname, it arrives from Celtic descent, and is thought to be a name given to "Dredge Diggers", Driggers can be found in descendants of tri-racial isolate groups such as the Brass Ankles, Lumbee, and which term traditionally applied to one of numerous "tri-racial isolate" groups of the Southeastern United States?
Sentence (from "History of the Native Americans in Baltimore"): The Piscataway tribe is indigenous to Southern Maryland, living in the area for centuries prior to European colonization.
Relevant evidence: No