The Kelvin series was defined by Fred Cook for late Swift Creek ceramics on the central to lower Georgia Coast. He considered this material sufficiently unique to warrant a separate series designation. The material was named after the Kelvin Grove subdivision site on St. Simons Island. Probably related to some of the Weeden Island types. Cook himself considered this a tentative type.
A few sherds with fairly thin incised lines on paste similar to Kelvin Complicated Stamped.