I am also related through the Benson branch.
I am the great/great granddaughter of Zilpha Benson King, daughter of Ashley Benson and “Chelly” –
Zilpha was a ½ sister to Mary Elizabeth Benson.
I was in Johnston County, NC last summer and took many, many pictures of gravestones. I may have some of the folks mentioned in your messages. Shall I email copies, if I have them?