I hope I can answer your questions: 1. Rev. David Allee m Charity Bybee, I do not have a family background for David.But, Charity Bybee was the daughter of John Bybee and Elizabeth McCann.
Bybee family: 1.John I m. Sarah Giles in probably Goochland County, VA Their son: 2. John II b Fluvanna County, VA m Elizabeth McCann. The family eventually moved to Barren County, KY. Daughter of John Bybee II and Elizabeth McCann was:the above 3.Charity Bybee Son of John II Bybee and Elizabeth McCann was: 3. John Bybee III m Elizabeth Kelley in Franklin Co., VA (sorry I don't have any dates in front of me, but this can easily be found online).
Evans family: 1.Thomas Evans I Children:Thomas Evans II Susanna Evans Susanna Evans m 1808 in Barren County, KY to Buford Allee, son of Rev. David Allee and Charity Bybee.
The son of Buford and Susanna Evans Bybee m Jemima Evans, the daughter of Thomas Evans II. I think his given name was 'Nathaniel' Allee?
After you have looked into these family lines a bit more, perhaps I can assist in clarifying a bit, these are certainly cousins marrying cousins.Sorry I cannot be more specific, but the Allee connection is not in my line, except by marriage. Betty