Through the Genealogy department at my local library, I located a booklet c. 1920 titled: "The Sanders Family" by Robert Wilson Sanders, stating: "This was copied from the original, loaned to me by his son James E. Sanders. Florence Aycock Flynn."
The booklet gives a firsthand account of the Sanders family of Barnwell County, including detailed accounts of each family member, land grants, how many fought for the Confederacy, and so on. There is a digital copy available for free on the LDS website. It is fifty-two pages packed with great details and descriptions. Anyone interested in the lineage of Black Jack Sanders should definitely read this little booklet.