Jim:
I've stumbled across this named unit somewhere in the last couple of years I've just got to remember who it was in relation to. The unit is listed as a NARA archives unit and is listed on http://www.researchonline.net/mocw/mounits.htm
I suspect it was one of the many short lived 1861 MSG transitional units that popped up and got consolidated, Ive just got to figure out who and where. I'll keep digging.
John R.