I had distant relatives who fought for the north. I’ve been unable to figure out what their units were, other than that they were Michigan infantry units. My direct-line ancestor and one of his sons served in the continental army during the revolution. I see that ancestry in the south is keenly studied and many people I’ve met from the south seem to know their families history well. that is not as true for northerners for some reason.
CC
The information is probably there but you will have to find it. Both sides actually kept pretty good records tho there will always be a few missing people.
Ancestry.com has a pretty good base of civil war rosters available. You could probably access it a local library if you don’t want to subscribe.
It's a lot different for the ones who are being invaded than it does for the invaders. The former has more reason to remember while the latter has more reason to forget.
I first found the grave stones for my ancestors who fought in the war. They all have their full name, and the outfit they served in.
Once you have that you can do a search with that info and always find them. Sometimes a lot. and sometimes just a little.