Families, principally from the Duncan surname, who descended from 4 Duncans of eastern Tennessee who were possibly related and other loose-end Duncans. They include Marshall Duncan (m. Betsey Denston Rogers), Thomas (m. 1790 Mary "Polly" Lynch), Joseph (b.1720), and Jeremiah (b. ca. 1750).

John Stull was probably born in Germany between 1680-1700. He immigrated to America before 1725. He and his wife, Martha, had ten children. The first four were probably born in Pennsylvania, the others in Prince George's County, Maryland. He was the first permanent German settler west of Frederick County, Maryland. Descendants lived in Maryland, Ohio, West Virginia, Kentucky, Indiana, Illinois, Texas, Arkansas and elsewhere.