Mills, Gary B. “Tracing Free People of Color in the Antebellum South: Methods, Sources, and Perspectives.” National Genealogical Society Quarterly 78.4 (Dec. 1990): 262-78.
Notes problems created by census designations of race for the families of Thomas and Betsy (Going) Nash, Isaac Perkins, and Gilbert Sweat (p. 264). Comments (p. 276, n. 6) that Lumbee surnames also appear among South Carolinas Turks or Free Moors.
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