Angela, my great-grandfather was John S. Medders (b. 1836, d. 1900), who married Mary Altman b. 1846, d. 1941). I believe your James Riley Medders was a brother of my John S.Medders. I am wondering if his wife, Betsy (Elizabeth) Altman was the sister of my Mary Altman. All are buried in Big Creek Cemetery in Appling County. Incidentally, my great-grandparents had a son named Benjamin Riley Medders, probably in honor of his uncle James Riley Medders. They also had a son named Jesse Colquit Medders.