I live in Sc also, and my husband's family is from Sumter, SC. I have researched the surname Pringle in SC for more than 40 years. I also research both black and white Pringles because I feel strongly that we all need to know our history.
Do you have any dates on Throne Pringle>. The year of his birth, and if deceased, the year of death? If Throne is living, can you ask him abt hid parents?
If you would like, I am happy to help. I have lots of materials and do not mind at all.
Dolores M. Pringle