Linda Zimmerman, the Graham family is your purview. I have worked on some for my intersecting lines and found an interesting profile with that started with a will I found naming Rebecca Floyd as a daughter. I am not sure I believe the family search link on her profile as it mixes the Grahams in Williamsburg again with the Horry lines. There are Revolutionary patriots in both Graham lines.
But...check please if you will this https://www.geni.com/people/John-Graham/600000020925784783 and John James Graham I don't know where the "James" comes from as a middle name, but could they be one and the same???? Both are in Horry. This is a hotbed of Patriots with Rebecca's grandfather in law Francis Floyd ( one of my lines) and her sister Jane Cooper's father in law Patriot Ezekiel Cooper, Sr. I am not sure about where Bartley Cooper fits in for sister Elizabeth. I will have to look through the Coopers some more.
Let me know what you think about the two Johns.
