Race in the American South: From Slavery to Civil Rights - David Brown, Clive Webb - Google Books

http://books.google.de/books?id=EFvz7hQrt5AC&pg=PA188&dq=grandfather+clause&hl=de&sa=X&ei=S0PeUtGFF4aWtQbU44HQAQ&ved=0CEcQ6AEwAz

The issue of race has indelibly shaped the history of the United States. Nowhere has the drama of race relations been more powerfully staged than in the American South. This book charts the turbulent course of southern race relations from the colonial…