Evidently, there were two of these vessels, both made in Jeffersonville, Indiana. The first was launched a year after the second one.
The first J.A. Cotton was launched in 1861 and was clad at least partially in iron and mounted one 32-pdr sb and one 9-pdr rifle. It was destroyed by the USS Estrella January 14, 1863.
The second CSS J.A. Cotton was launched in 1860 for the New Orleans, Coast and La Fourche Transportation, Co. and named the Mary T (hence the name Marytie that I saw in one report). It was seized by the Confederate army in early 1963 and fitted with cotton bales for protection. Armament on board consisted of two 24-pdrs, two 12-pdrs, and one howitzer. It survived the engagement at Butte La Rose and surrendered at the end of the war.
The Battle to End All Battles. --Blockade-R