My ancestor was also in Company D. He was wounded at Shiloh, returned to Corinth with the men and was discharged and returned to NO. I am interested in what you uncover about this regiment. My ancestor was granted a 30 days furlough in March 1862 and evidently did not leave with the rest of the regiment, but arrived in Tennessee in time for Shiloh. I'm curious if anyone knows why he was given a furlough (there appear to have been no family issues) or if anyone else was at this time. Through research with the Daily Picayune it stated several companies of this regiment did not leave with the rest in March 1862 because they were not fully equipped yet.