I believe that Wiley Lee's death can be pinned down to the 1866-1870 range, since he seems to be on an 1866 Mississippi state census (though I have not investigated this in detail.) If you will send me your email address (to pbroadbent179@gmail.com, with copy to pbroadbent@cblaw.com) and tell me what child of his you descend from, I will try to keep you posted on anything new I find.