Your James Fears married Catherine Douglass in Grainger Co., TN on 15 May 1808. William Fears (my g-g-g grandfather) married Polly Douglass in the same place on 29 September 1809. It seems plausible that these two Fears boys were brothers. I have a list of (some of?) James' children, but nothing beyond that. Others have speculated as to the parents of these two, but I haven't seen anything conclusive to date.