The 3rd Regiment, Mississippi Infantry (Confederate) was organized in the spring of 1861 in Clarke County, Mississippi under the command of Col. John B. Deason and served in the Western Theater under Hebert's and Featherston's brigades in the Department of Mississippi and East Louisiana and the Army of Tennessee. It was later commanded by Col. Thomas A. Mellon, Lt. Col. Samuel M. Dyer, and Capts. O. H. Johnston and John Saucier. It was consolidated with the 33rd and 40th Infantry Regiments to form the 3rd Regiment, Mississippi Consolidated Infantry on April 9, 1865 in Johnston County, North Carolina under the command of Col. James M. Stigler. (HMU, 11; DR-MSOR, 533-540; NPS-BU)
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