That's very interesting. Several years ago, I did some amateur research, trying to discover unidentified full and mixed-blood Native-Americans (American Indians) in Confederate and Federal units. Ultimately, I was overwhelmed by the numbers of documented and non-documented Native-Americans, that I set the research aside.
I responded to Ms. Anzalone's posting, because she reminded me in the unit designation, 5th Mississippi and county, Winston, of three (3) brothers I had verified and even had photographs in Confederate uniform who were half-blood Native-Americans. In fact a descendant in California has wartime letters of one of the brothers, of which, I've read a couple.
The brothers were Benjamin, Peter and Stephen Krebs of the 5th Mississippi Infantry, Co. D. I don't recall the order, but one was killed outright at the end of the first day at Shiloh. Another died of wounds in a Mississippi hospital, I believe, at Shiloh. The third one fought all through the war and surrendered in North Carolina.
The photos are striking as these men are immediately identifiable, ethnically as Native-Americans. There would have been no question for the other men in the unit, that they were fighting alongside a non-white or mixed-blood soldier. Also, the brother who survived attained some small rank, so he would have undoubtedly given or passed on orders to white troops.
I am currently out of town, but upon my return, I'll try to dig up the photo and post it again, here on the message boards.
Jim Martin