Sherry,

This is what is in Booth's book:

Martin, T. K.,Pvt. Co. K, 6th La. Cav. Roll of Prisoners of War, C. S. A., Paroled Natchitoches, La., June 9, 1865. Res. Sabine Par., La.

Might have to go to muster rolls or pension records to find further.