I know I stumbled on it while looking up people not units so its going to take a while. I did a bunch of look ups for the fellow in NW Ark and I think I may have come across it there but I'm just not sure. If it was there it likely came from a pension application or some sort. I'll look for it and let you know. Looks like Harvey found something on ancestry.com and I know the unit is listed on their unit list which is footnoted to NARA. I'm aware of some of the errors on the link site but certainly not all of them as I've said before I tend to be a people person vs a unit person, I just can't seem to keep them all straight.