The information that I gave you is from:
The Hunley: Submarines, Sacrifice, and Success in the Civil War 1995, 1999 by Mark K. Ragan
“I found the skipper of the Pioneer, John K. Scott, conspicuously missing from the post New Orleans phase of our story. Upon further investigation I discovered that shortly after the fall of the city, he enlisted in a Louisiana Infantry Regiment, went to war, and was never heard from again.” (footnote 15)
footnote 15. “John K. Scott, Compiled Service Records of Confederate Soldiers Who served in Organizations From the State of Louisiana, RG 109, Entry M-320, National Archives, Washington, DC” (Again, no unit information or microfilm roll number given).
As I said previously, Scott (that his middle initial is K is positively correct) is often said to have joined a La. Inf. Regt. Maybe the author took it for granted that this was true and simply gave his “source” as footnote 15 above. That neither you nor I can find any record of his supposed service is sufficient for me to conclude that he did not join a La, Inf. Regt.
The statement that Scott “was never heard from again” is as wrong as wrong can be. I have accounts of his post war activities in sources dated from 1866 until his death in 1874. I also have a copy of his brief obituary. And yes, the John K. Scott that I refer to post war is absolutely, positively the same man connected with submarine operations in New Orleans before the city fell.