An interesting piece, though I'm pretty certain his remarks & quote about Grant are bogus.
As for the rest, it's curious that since the Civil War ended, no record of black Confederate fighting-soldiers (as opposed to support personnel) survives.
I suspect the reason is that white Confederates didn't want African-Americans, even freed-blacks, armed or recognized as defenders of the Confederacy.
Walter Williams quotes Horace Greeley:
