Anaxagoras
Banned
While Sherman had sympathy with the southern people, he had no sympathy with the Confederacy.
"As long as Louisiana is in the Union, and I occupy this post, I will serve her faithfully against internal or external enemies. But if Louisiana secede from the Genl. Government that instant I stop - I will do no act, breathe no word, think no thought hostile to the government of the United States." - William T Sherman, December 1860
Perhaps a POD could be the death of Sherman's first wife and his remarriage to a Louisiana girl.
Quite a few of the officers who sided against the region of their birth did so due to their wives.