Is your uniform description the one with the red and blue uniform detailed below; the later gray one that Bryan identified to the Des Arc Rangers or even better, another description? Regretably in over 20 years of researching units that served at Wilson's Creek I have not found an image of this particular unit.

"[DES ARC, ARK.] THE CONSTITUTIONAL UNION, April 5, 1861, p. 3, c. 1
Cavalry Company.

This corps, at their last meeting, adopted as their name, The Des Arc Rangers. On last Saturday they paraded through our streets, for the first time, in their uniforms, presenting quite a soldier-like appearance. The uniform adopted by the Rangers is a red flannel shirt, with a deep blue breast and back, blue cuffs and black velvet collar, with three rows of brass buttons in front; black pants, with red stripes up the sides; United States cavalry fatigue cap, with ostrich plume, with colt's Navy repeaters and United States dragoon sabers."

"Came across the following while looking for information on early Arkansas uniforms:-

LITTLE ROCK] ARKANSAS TRUE DEMOCRAT, April 25, 1861, p. 2, c. 1

The ladies we understand have taken up the cause in earnest. They were up till on o'clock Tuesday night making uniforms for the Prairie company, who came in about twelve o'clock on Monday, on their way to Fort Smith. Fifty jackets had to be bought, cut and made; and though they were not finished in time, as they had left at eleven, yet they were sent up on the first boat."

Can anyone identify who the Prairie company were?
Alan Thrower -- Saturday, 13 August 2005, at 3:27 p.m.

Alan, the only Prairie County company that headed for Fort Smith in the early part of the war was the "Des Arc Rangers", a mounted company that became Co. B, 1st Arkansas Mounted Rifles. They had a flag presentation at Des Arc on May 25, 1861, then marched to Little Rock, where they embarked on a steamboat for Fort Smith. The May 25 date comes from Ted R. Worley, who wrote Early History of Des Arc and Its People.

The other early Prairie County company was the "Rector Guards", which departed Des Arc on a steamboat on April 30, 1861, bound for Memphis. They became Co. D, 1st Arkansas State Troops; and later Co. H, 15th (Josey's) Arkansas Infantry.
Bryan Howerton -- Saturday, 13 August 2005, at 7:29 p.m."

Alan Thrower
England