Wow thank you so much! That’s exactly what I was looking for. The reason I’m researching this man is because I acquired this musket (
https://www.horsesoldier.com/products/identified-items/firearms/35880) just a couple months ago. As you can see it served with the 33rd and has the initials J Kelly scratched into the butt. The confounding information here is that the rifle appears to be marked Company K. Neither James nor John Kelly, the only J Kelly’s in the regiment, appear to have served in company K. However, the rifle is dated 1862 so it was likely issued when the regiment was mustered in. John Kelly enlisted in July of ‘64, meaning my rifle most likely belonged to James. Could the ‘K’s on the rifle mean Kelly instead of a company designation? I can only wonder. Any thoughts or evidence would be much appreciated.