"Who is an American?" asked the Ku Klux Klan. It is a question that echoes as loudly today as it did in the early twentieth century. But who really joined the Klan? Were they "hillbillies, the Great Unteachables" as one journalist put it? It would be comforting to think so, but how then did they become one of the most powerful political forces in our nation's history?
In The Ku Klux Klan in the Heartland, renowned historian James...