I have a civil war photo of a man wearing a uniform with what I think are 1st Lt. bars. It was in my g-grandfather's album. I think it is probably a 1st Lt. from Illinois Regt 33, Co. F. My g-grandfather, George W. Arman, and his brother Phillip were both in that company. One of the 1st Lieutenants was George McKee, from Ancona.
If you have pictures of family of this man that may help to id the photo, I'll be happy to e-mail it to you. He doesn't fit the enlistment description of George McKee very well, though.