Yes, sir, researching Arkansas regiments is quite fun indeed. Of course, it can also be a bit exasperating! I would be very interested to see how many Arkansans ended up in Federal units from Missouri. Of course, I'd be curious about how many ended up in Missouri Confederate regiments too. I'm sure the number for both would be kind of surprising. Somewhere I've got a quote from an Arkansas Unionist talking about the large number of Arkansans serving in Missouri Federal outfits.