Thanks for the response and it is helpful.
I have been able to find some information on the unit itself and have available the roster of those in his unit. That is all I have!!
I *wish* I knew who his friends and relatives were - there are no other Fitzpatricks and no other surnames that are familiar to that line. That is why I was hoping that a "next of kin" may be listed.
He doesn't show up in the 1860 census for Ouachita/Union/Lincoln parishes. It's like he just appeared to enlist and had no ties to anyone.