...Pass, and fell back, on the afternoon of the twenty-fifth, to a point three miles south of Ponchatoula, on the railroad, with the main body of my command, leaving six companies at Ponchatoula, under Major Clarke , Sixth regiment Michigan volunteers, as picket and provost-guard, with orders to fall back on the main body in case of attack. I here erected a small battery of railroad iron, and mounted one of th...