I have a first generation Parker-Hale P1853. From all I have heard, as far as repro rifles are concerned, this is as close as you can get to an original though, they followed the 4th model pattern more than a true Civil War version.
But, I have been enjoying a book on the pattern 1853 rifles. The stock making company or shop owner was customarily stamped on the outside bottom of the butt stock but, the actual person who made or finished* the stock used to stamp his name in the ramrod channel. I decided to look in my PH stock's channel just for the heck of it and what do you know?! Well, look at the pics.
It was a common practice to have apprentices rough out the stock letting more skilled and experienced workers to inlet and finish the stocks (that was the procedure in just about any hand manufacturing process.)
It's in the channel just above where it goes inside the stock ahead of the trigger guard. I supposed that is the name of the actual person who made the stock.