I think that at least one company of Gratiot's 3rd Arkansas State Troops (fought at Wilson's Creek MO) and the 17th Arkansas Infantry (Rector's/Griffith's), and 11th/17th Consolidated Arkansas Infantry had men from Hempstead Co. Arkansas in them.
Not sure, but think that Dawson's 19th Arkansas Infantry had some Hempstead Co. men as well...??
Others....???
y.v.o.s.,
Kenneth Byrd