When I hear older people say "Negro", "Kraut", or the like, I'm perfectly fine with it. Back then, it wasn't viewed as being racist to call them that, I know older black men and women who are perfectly fine with being called that when from another older person -- you don't apply current context and logic to the context used back in the past. A southern man or woman who would've been the nicest person you know saying negro could be the same as a friendly neighbor calling a hispanic man living down the street a mexican.