there was another, darker side to Wilson’s Southern identity. He was not just a son of the South in general, but the son of a Southern pastor who had defended slavery by writing a pamphlet titled Mutual Relation of Masters and Slaves as Taught in the Bible. It was a worldview that Wilson never entirely shook off. As president of Princeton, he stood against admitting black students. As president of the United States, he looked on with approval as his cabinet members segregated large parts of the federal government.
Daniel Immerwahr in How to Hide an Empire