Interesting. They’re out there. So why don’t they get their own separate room in a museum? 3700 is big enough.
They tried to enlist into the confederacy but the pro-confederate Governor refused to give them military assignments and the Louisiana legislature passed a law requiring that units be whites-only and the unit was disbanded. When New Orleans was occupied by Union forces, 10% of them went and fought for the United States.
I remember him, but can’t recall his name. Was he from Virginia? He got all kind of nastiness from other blacks for being proud he was descended from a black Confederate. I can’t remember if he was a member of the Sons of the Confederacy. but he may have been.
New Orleans had a not small population of free mixed-race people (like those who served in the Native Guard) who didn't consider themselves to be fully Black or White. They were different from many other parts of the South (and North) in that regard. That is why it's only there that a colored unit offered itself to the secessionist forces.
Bryan Rigg started his career writing about Jews (more often half- and quarter-Jews) in Hitler's military forces. He went about that in a more serious and professional way than he's going after this, but neither argument changes the overall picture much.