Hi Tony -

if you are referring to Capt. Wm. S. Yerger, see this excerpt taken from the URL given below:
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Colonel John Griffith writes in his report re the action at Concord Church, MS on Dec. 1, 1864:

"I sent a company from Wood’s Regiment and a company from the Eleventh and Seventeenth Arkansas, under Capt. C. Watkins, the detachment being placed under command of Capt. William S. Yerger, of Wood’s Regiment, to prevent the destruction of the bridge over the Big Black River on the Mississippi Central Railroad, which the enemy had reached before them, and although set on fire by the enemy, was stoutly defended by some dozen citizens assembled for the occasion, without knowledge of the approach of Confederate forces. The timely arrival of Captain Yerger effected the retreat of the enemy and the easy extinguishment of the flames without material damage to the work. It is worthy of especial mention that a few men living in the vicinity of this bridge rallied for its protection, and fought with skill and courage against the greatest odds, and were holding their ground nobly when our troops arrived."

y.v.o.s.,

Ken Byrd