The American Civil War Research Database show two who served in CSA units from Missouri. There are 7 Daniel's and one Daniel Browne listed in Arkansas units, two with the middle initial 'C,' one 'E,' and one 'K.'
Barry County, Missouri is just above the Arkansas Northwestern border and Madison Co., Arkansas not too far South, just East of Fayetteville, so you have a lot of choices.
Now, the next place to go would be trying Goggle searches for each of these units, i.e., 34th Arkansas Infantry, etc. Hopefully, from them you might be able to determine the counties from where they were raised.
Two other places to investigate are Missouri in the Civil War and Arkansas in the Civil War. You will find the URLs for these sites conducting Goggle searches.
Good hunting,
George Martin
Daniel Brown
Residence was not listed;
Enlisted as a Private (date unknown).
"F" Co. MO 11th Infantry
Daniel H. Brown
Residence was not listed;
Enlisted as a Sergeant (date unknown).
"I" Co. MO 4th Cavalry
The Arkansas Daniel's were in Co. H, 34th Inf; Co. F, 19th Inf., Co. C, Johnson's Inf., Dan. C, Co. E, 3rd Cav., Dan. C, Co. H, 7th Cav., Dan. H, 1st Inf., Dan. K, Co. B, 1st Batt'n. Cav. and Dan. Browne, Co. D, 1st Batt'n. Sharpshooters.