Thanks for the link to this interesting article. According to the author, the source for military service for Porter Myers is a paper by a family member written in 1970, Rudy H. Leverett, Legend of the Free State of Jones, 1984, and B. McFarland, "A Forgotten Expedition to Pensacola in January, 1861", Publications of the Mississippi Historical Society, 9 (1906), pp. 15-23. Since no record of Confederate military service exists under his name, the last source suggested that he may have been involved in one of the state military companies organized before the Confederacy army existed. As Porter Myers isn't mentioned in this article, I'm at a loss to understand why this article was used as a reference.

The article on Pensacola mentions the following concerning officers of the Mississippi companies sent to Pensacola immediately after secession.

The companies were the "Chickasaw Guards'* (of which the writer was a member), from Chickasaw County, Wm. F. Tucker captain, L. W. Galbraith first lieutenant, J. H. Moore second lieutenant, Dr. W. C. White third lieutenant; the "Columbus Riflemen," from Lowndes County, Charles H. Abert captain, W. E. Baldwin first lieutenant, Sam D. Harris second lieutenant, J. W. Benoit third lieutenant; the "Lowndes Southrons," from Lowndes County, Wm. B. Wade captain, George H. Lipscomb first lieutenant, T. P. Shields second lieutenant, W. C. Richards third lieutenant; the "Prairie Guards" from Noxubee and Lowndes Counties, J. W. T. Hairston captain, A. H. Ledbetter first lieutenant, James H. Hairston second lieutenant, Wm. H. Gray third lieutenant; the "Noxubee Rifles" from Noxubee County, George T. Weir captain, J. H. Rives first lieutenant, Wm. Longstreet second lieutenant, Joseph Koger Dixon third lieutenant; the "Enterprise Guards" from Clarke County, John W. O'Ferrall captain, W. S. Reynolds second lieutenant, and Andrew E. Moody third lieutenant (R. Stewart Weir resigned as first lieutenant a few days before the company started, was later captain of another company, and died in 1862 with that rank); the "Lauderdale Rifles" from Lauderdale County, Con. Rea captain (Will Whitaker, Laines Lasley, Dr. A. J. Crawford — or Crumpton, or Wm. Spinks — were the lieutenants, as well as can now be ascertained) ; the "Quitman Light Infantry" from Clarke County, J. L. Duck captain, F. G. Nicholson first lieutenant, William Hughes second lieutenant, J. E. Hardy third lieutenant, as well as now can be learned.

There has been much difficulty in ascertaining the names of some of the lieutenants in the three companies last mentioned, the memories of the few members of those companies who can be found at this late day have grown dim, but no pains have been spared to give the names of the officers of all the companies in the expedition as accurately as possible.

Best known for his public stand against secession in the Mississippi convention, it seems a bit out of place to suppose that Porter Myers was somehow busy organizing a military company before the ink on his signature was dry. I'm not suggesting that he was a Unionist or anti-Confederate -- just that he opposed the immediate secession of Mississippi.

Based on what we know, the idea that Porter Myers was ever in Confederate service appears to be based on someone else's wishful thinking.