Kevin:
You might also want to look for:
1) R.A. Jarman's "The History of Company K, 27th Mississippi Infantry, and It's First and Last Muster Rolls," Aberdeen, MS, the Aberdeen Examiner, 1890. The MS Dept. of Archives & History is supposed to have a copy.
2) Rudy H. Leverett's "Ole Rosinheels, a Biographical Sketch of Major Amos McLemore, 27th Mississippi Infantry Regiment, Provisional Army of the Confederate State of America," Boise, ID, ca. 1979.
Hope this helps! -- Jim Huffman, Gainesville Vols