Your findings are exciting to me. Most of what I know, or think I know was from old stories and one of the relatives found records in archive in Baton Rouge, La. perhaps 30 years ago. I believe he was born in New York state & moved to Louisiana. Also, he may have had a brother that fought with the North...? The spelling of his last name was french and I've heard of alterations of it but for what reasons, I don't know. I'm impressed at your ability to look up the records so quick, etc. I'm very interested in his movement with the CSA & battles he took part in. All I know was he was in the Trans-Mississippi area along the Red River. Sherman was chancellor of the early Louisiana state university, then just north of Alexandria, La., where the veterans hospital now is located. I believe the name "Tiger" originated there and was carried into battle; thus probably the now mascok of LSU, "Fighting Tigers."
I've read on the Red river campaign, the South slipped at a chance to basically totally anilate the Northern army on its retreat down the Red river. Some of these same troops was in sherman's push to the sea in Georgia where I currently am working.
Yesterday, I visited the Confederate Cemetery in Griffin, Ga.where CSA troops from Atlanta area fighting are buried. I came across this tomb that you might find interesting. It was the tomb of Pvt Wilet A. Stewart Co H Murry's 4 Tenn Cav CSA July 26, 1864 "Free Man Of Colour." Yes, spelled Colour. Was this a black soldier?
Thankfully, David P. Cummings