A few points regarding "Black Southerners In Gray", Dr. Bergeron, and the debate over African-Americans serving Confederacy:
Busser Davis, a slave who served the Confederate and Union at different times during the war, was denied a U. S. pension because he had served the Confederacy.
The free men of color from Isle Brevelle in Natchitoches Parish formed their own Confederate calvary.
I think one of the authors who contributed to Black Southerners in Gray was an African-American.
Dr. David Boullt, a white man of St. Maurice and Natchitoches, had children by a free woman of color, and two, possibly three of his sons served the Confederate Army.
A side note, Dr. Boullt was second in Winn Parish as to the number of slaves owned. His commonlaw wife, a free woman of color, owned many slaves as well, separate property of hers.
The debate can go on and on, but facts are apparent.
Finally, Dr. Bergeron only contributed to this book, he is not the author of the entire book. It seems someone is trying to assassinate his character, which is very high I might add.