Ron,
The 41st Miss. did not join the High Pressure Brigade until right before Stones River. After that they stayed in the High Pressure Brigade for the rest of the war, as you know.
At the time of Shiloh, they were encamped at Verona waiting for arms to become available. They arrived at Corinth on May 14th and were put in Patton Anderson's brigade. The only other regiment I can think of right now that was in that brigade was the 25th La. The 41st was brigaded with the 1st and 3rd Florida during the Kentucky Campaign, John Calvin Brown's Brigade.
By the way, I haven't forgotten about coming down to see you. I started a new job in October and that's definitely got my attention right now but one day I'll call and we'll get together.
Randy