I figured you'd be interested even if no one else was.
There's a good deal more found here that you may not be aware of:
https://civilwartalk.com/threads/black-southerners-and-the-confederate-cause-what-the-newspapers-said-1861-1865.129911/
https://civilwartalk.com/threads/black-southerners-and-the-confederate-cause-the-post-war-newspapers.165002/
https://civilwartalk.com/threads/counting-the-confederate-service-records-of-black-and-mulatto-men.142783/
https://civilwartalk.com/threads/lack-of-confederate-or-accounts-of-blacks-in-the-ranks.154539/
https://civilwartalk.com/threads/black-confederates-how-many-were-killed-and-wounded-in-battle.160154/
I post there occasionally as east tennessee roots