If it is the same John O'Quin and Grace Spivey that are buried in Seymor Cemetery in Mississippi, then I have some info on the O'Quin side.
John's father would be Tarlow O'Quin and his mother would be Elizabeth (Roundtree) O'Quin. Tarlow is the original immigrant from Ireland and most likely came over in the late 1600's. The story goes that he was catholic and she protestant and they were getting so much flack from both sides that he came to America to make his fortune and then he would send back for her. He eventually did make enough money to send back for her and obtained for himself a large estate in North Carolina called Runaway Meadows or possibly Roonoroy Meadows. One of their sons was John O'Quin who supposedly fought in the Revolutionary War. I'd like more information about John if you have it. My email is
scottcanion@hotmail.com. Hope to hear from you soon.
Scott