I was rushed a little on the first message I sent back. From my information, Thomas Jefferson Mckee had three brothers. Luther, John, and Robert. I do not know their mothers name. There is a legend that the family came from three brothers from Scotland.
My infomation on John, says he moved to Emory (Rains Co.) Texas. No info on Luther or Robert.
It appears Thomas had about 20 kids from his three marrages. Thomas was in the CSA in the 46th Reg., 6th Bn, Company 1. He left MS for TX in 1867.
I bet somewhere down the line we are connected. Maybe you can fill in the gaps.