Only to happy to help if I can. Because Charles' Bush line falls into the same DNA group as my own, I hope someday that maybe I'll find the origins of my own GGGG grandfather, Dr. John Housen Bush maybe by helping other Bush "cousins".
You are quite right about too many Bushes!!! Current DNA studies at least can put a researcher in the right ball park! Our Group is quite unusual in it's DNA profile.
I think the LVA also might have Lancaster Co. wills on microfiche. A pain to go through but often yielding wonderful results.
I see that Lanc. Co WB 20:96 records an Inventory of the Estate of Elizabeth Riveer . It was ordered 2/18/1776 and returned 5/16/1776. The abstract does not mention any names other than the men appointed to do the appraisal- Henry Lawson, Thomas Carter and Thomas Shearman.
The Carter family also had members witnessing that will of John Riveer, SR in 1775. Both Dale and John Carter were among the witnesses.Recall that John Riveer's wife from his will was named Joanna. Could Elizabeth have been John's brother Johnson Riveer perhaps?
I am assuming you are neither a Bush or Riveer descendant??