Thank you for your reply, Barbara.
I have found some additional information in the last few years. I was able to visit the grave sites of William Abraham and Nancy Pickering Dukes at the Canaan Baptist Church in Cope, SC and I've tracked information on their parents and grandparents (back to Joseph Dukes (1720-1800) and Samuel Pickering (1690-1726).
I'm curious where your Margaret Dukes fits into the tree, as I don't have her in my records. I'm descended through William and Nancy's son, William Abraham "Willie" Dukes, Jr. The only sibling I currently have listed for him is an "Abram" Dukes that may or may not be correct.
Willie Abraham Dukes Jr. was my great great grandfather.
I have a photograph of his wife, Martha Ann Sturkie Dukes. I don't know if you have any old photos of the Dukes or Pickering families from the 1920's and back, but if you do I'd love to see them. William and Nancy died in 1890 and 1895 so any photos of them would definitely be a treasure if they exist!