North West 15th Arkansas Volunteer Infantry

Again reorganized it served in the Vicksburg Campaign as a part of Martin Green's Brigade of Bowen's Missouri Division. The regimental colors were lost at Port Gibson, when the entire color guard was killed.
http://nw15tharkansas.org/index.php?page=regimental-history

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Report of Brigadier General William P. Benton, U. S. Army, commanding First Brigade. BIVOUAC IN THE FIELD, Mississippi, May 5, 1863.

SIR: I have the honor to submit the following report of the part taken by the First Brigade, Fourteenth DIVISION, THIRTEENTH Army Corps, Department of the Tennessee, in the engagement on the night of the 30th ultimo and 1st instant, near Port Gibson, MISS.:

. . . . At the same time it is due to the truth of history to state that the Eighteenth Indiana, whose mortality list is larger than any other regiment engaged, and the Ninety-NINTH Illinois, were in the charge; that Captain Charles, of Company H, of the former, was the first to jump upon one of the cannon and claim it as his trophy. Amos Nagle, private, of Company K, also captured the color-bearer and the colors of the Fifteenth Arkansas, inscribed with the battle-fields of Oak Hill, Elkhorn, Corinth, and Hatchie Bridge. . . . .

WM. P. BENTON,
Brigadier General, Comdg. First Brigadier, Fourteenth Div., THIRTEENTH A. C.
OR V24, P1, p. 626