A favorite story from the Gettysburg Campaign includes this quote about a Confederate slave in Pennsylvania. The quote appears in Clifford Dowdey's Death of a Nation: The Story of Lee and His Men at Gettysburg. The book is on my desk at work, so I cannot give the exact page (sixty-something). Here's the story as repeated by Shelby Foote --
A housewife, questioning a Negro body servant who was attending his North Carolina master on the march, tested his loyalty by asking him if he was treated well, and she got a careful answer. "I live as I wish," he told her, "and if I did not, I think I couldn't better myself by stopping here. This is a beautiful country, but it doesn't come up to home in my eyes."