I also have a reference to him as being in the TX 17th Cavalry Regiment Company A. His name is second to last in this list. http://www.researchonline.net/txcw/index/index104.htm
There is another reference to him as being in Company K of the First Texas Infantry Regiment. http://www.youngsanders.org/manuscript_resources.htm#H
My GGG Grandfather was very well connected his cousin was Brig. General William P. Hardeman and his brother was Capt. Peter Hardeman. I'm curious as to know more and specifics on any battles he fought in etc...
Thanks to any Civil war buff that can help me. If you want to see the documents I have let me know.
Thanks,
Gary