Have you found the information you were looking for regarding Ernest L. Poyner and Sarah Elizabeth Knowles?
I just started researching this line of my mother-in-laws family. I have been unable to determine much on Ernest L. Poyner's line but Sarah Knowles's father and mother are buried in the Lee's Mill area of Washington County, NC. In the Zion Chapel Church Cemetery.
I would be interested to hear what information you have uncovered.