My fault!Somewhere I missed a date.William Dunbar, son of Jonathan, son of Felix.But William Dunbar did, according to my records, have a daughter named 'Nancy'.But I didn't have the part about her marrying Simmons.According to my information, William and family moved to Kemper County, MS in the late 1840s.Then afterward some of the family moved to Leake County.(Some of that line still live there.) I show him as having nine children, the names of which are about all that I have of that line.Roxanne Miles is the only wife that I have listed.
My family came from Han's line.Ellison Lafayette migrated to MS about 1870.
Some of the Gross family near Carthage, MS (Leake County) might have info pertaining to your question.