John Gregg reported: "After the retrograde movement was commenced, Colonel [A. P.] Thompson, of the Third Kentucky, with six companies of mounted troops, reported to me, having Just arrived from Jackson. I immediately placed this force in position, together with Captain Bledsoe and his two remaining pieces, and this position they held until the infantry had moved some distance in the direction of Jackson, when they withdrew by my direction."
To correct for a lack of mounted troops, the Confederates mounted several infantry units in Jackson around this time ... is it possible that the 3rd KY Infantry (CSA), or at least six companies of it, was mounted by Brig. Gen. John Adams in Jackson before being sent to Raymond?
Do the first-hand accounts that you have run across describe the rearguard action in any detail?
Thank you very much for your response! Are you working on a book or article that I could reference in any way?