My mother was a Duffie from Saluda, SC.I know that her father, Boyd Trawyick Duffie's father's line includes the people you mentioned.Boyd's father was Henry Lucius/Lucian Duffie who married Amanda Anne Whittle. They had 7 children.Henry Lucius's father Hugh Patrick Duffey married Nancy Emaline Duffey. They had 5 children--William Yancy A.T., John B., Pickens A.T.B., Thyratira Tryphena Mehetabel, and Henry Lucius/Lucian. I have no idea how they came up with these names!! Hope this helps.