On my father's side... the history is more sketchy. It's very likely some were involved in the other side of the civil war- much of that side is actually Cherokee so they may simply have not gotten involved.
The Cherokee, at least some factions of the tribe, were deeply involved, fighting mostly west of the Mississippi. The last Confederate General to surrender was Stand Watie, a full-blooded Cherokee.
When I was a Second Lieutenant, I needed Dress Blues, so I bought a set at the Thrift Store for cheap. There was only one thing wrong with them -- all the gold trim was real gold. Under Army regulations, you can wear gold-colored rayon trim
or gold, but you can't mix-and-match.
When I got promoted to First Lieutenant, I needed a new set of shoulder boards -- and nearly fainted when I saw what gold trim boards would cost. So I got a jar of silver model airplane paint and
painted my bars silver.
Then I made Captain. Gold shoulder boards cost even more -- so I broke out the silver paint and painstakingly built up a second sliver bar.
Then I made Major. To buy a set of gold shoulder boards would require paying off the national debt. So I haunted Thrift Shops and finally found a set of gold Infantry Major's boards --
very ratty and ragged, but in my price range.
At a formal affair, I was accosted by a Major General, "Major, those shoulder boards are an absolute
disgrace!"
I drew myself up and said, "Sir,
these shoulder boards were at Gettysburg." For the rest of the night, senior officers would admire my shoulder boards and congratulate me.
Fortunately, none of them knew that Joshua Humphrey (who crossed the Stone Wall) was a Lieutenant Colonel in the Confederate Army and Alexander A. Humphrey was a Union Brigadier General.