Hi, Judith,
I'm descended from the Watkins, Messicks, Lintons, and Amorys of Poquoson, York County. I've just posted a big GEDCOM including your ancestors. Both of us descend from Littleton Watkins and his wife Sarah Elender Messick., you from two of his sons, Sidney Duncan and John William and I from one of his daughters, Sarah Elizabeth. Robert William Watkins is the son of William T. Watkins and Eliza Linton and was Littleton's uncle. Their father was William Watkins and wife Anna Rawlins. If you go to "DDescendents of the Watkins family of York County, Virginia" their lines with some of the Holloway and Evans ancestors are shown. Let me know if you have questions.
Best,
Chris Long