Brian, the reason why Co. K, 14th Arkansas Infantry, had more enlistments in the U.S. service was due to the fact that the company was raised in Searcy County.

Most Arkansas Union regiments were recruited on an "at large" basis, i.e., they received recruits who happened to show up at Springfield or Cassville, Missouri, or the posts at Fayetteville, Fort Smith or Helena; as well as from men who joined up when a patrol marched through their neighborhood. They were very much enlistments of "opportunity".

The 3rd Arkansas Cavalry, U.S. Volunteers, was the first attempt to recruit a Union regiment the way the Confederates did it -- an aggressive, targetted recruiting drive to raise companies on a county basis. Searcy County (along with Conway, Perry, Yell and Pulaski) was extensively recruited. This was never attempted in the northern counties, and that's why Co. K, 14th Arkansas, appears at first sight to have "more Unionist" than the other companies.