My gg grandad was James Andrew Martin b. 1826 Smith County, Mississippi died 1907 buried In Athens cemetery in Howard County, Arkansas. His file designation was James Martin Company G 37 Mississippi Infantry "Yancey Guards"
He signed a prisoner of war release on July 6, 1863 at Vicksburg, Mississippi to Lieut. Gen. John C. Pemberton. I would like to know the trek of my gg grandad while he was in the 37th Mississippi Infantry Company G. Can anyone help me by giving me a resource about this regiment or at least give me info on the footsoldiers trek? I would appreciate any info on the matter.

Dave