The August 1861 date is per Harrell's "Confederate Military History" Arkansas volume. The date is wrong. Harrell is okay for a general understanding of the Civil War in Arkansas, but I don't rely on it for detailed research. Most of his regimental histories were lifted straight out of Hempstead's "Pictorial History of Arkansas."

As best as I can determine, the 30th/25th Arkansas was organized on June 13, 1862, when the 11th Battalion Arkansas Infantry was increased to a regiment.