I am descended from Aaron Quick and still have Quick relatives in Marlboro County. There is no Lumbee (Southeastern NC Native American Tribe) in my particular bloodline. There was a marriage into the Rainwater family, who were Native American, but more likely Pee Dee than Lumbee. Lumbees do live in the areas from Robeson and Scotland Counties, NC and into Marlboro County, SC. The Lumbees in Marlboro are usually of the Locklear, Lowery, Chavis, and Clark families.
In the past Native Americans could only be described as white, black, or mulatto on government forms. As late as the 1970s Lumbees had to put "white" on their birth certificates.
The Lumbee Tribal Council in Pembroke, NC has extensive genealogical records. I do not know if these records are available to the public.