I just found James Jr. Aflacka in the 1880 census of Jefferson County IL. He is listed with his wife Sarah A. and children Raymond, age 6, Viney E. age 4, Dolley age 2, and Elsey (male) age 7/12.
I also went to the IL Archives and searched their records for marriages. After reading more about their sources I beleive that the James Aflack married to Nancy Warren in 1851, is my James Afflack who married Nancy Warren in TN in 1834. Probably the IL date was compiled from Deed records or some other source which was erroneous.
I also beleive that your James was the son of my James. That would make him and myg-grandmother 1st cousins.