Please email me offline. I have information linking the Shriver to the Ferree family. It may provide some information. I have lots of background on the Ferree family and I know there was a woman
David Shriver Sr. (1735-1826) was married to Rebecca Ferree (1742 - 1812) descended from Phillip Ferree, one of the six Ferree children from Marie W. Ferree, the first Ferree and settler in Paradise, Pa in 1712.
I am descended from John Ferree, Phillip's brother.