A couple years ago, Javamom shared this interesting find::
I was ever so excited when I found the Norton Critical Edition of North and South at our library last week. In it are letters from Charles Dickens to Mrs. Gaskell, as some of her work was printed by Dickens, in serial form (in weekly, numbered appearances) in his magazine called “Household Words.” He liked her writing and her ideas, but shared (in all manner of gentlemanly fashion) his opinion of an occasional edit needed in order for a particular scene to fit into his magazine.
I was excited to find out that there was a relationship between the two authors, and that his input had some bearing on her work. As well, Gaskell was one of few friends to Charlotte Bronte, and Gaskell even wrote a biography of Miss Bronte. There is at least one letter that EG wrote to Bronte for input on North and South, and a letter back from her. Other letters included are from Thackery, John Forster (friend of EG and of Dickens, who became principal biographer of Dickens), Harriet Beecher Stowe, and several others.
You can get Gaskell’s North and South free for Kindle.
The movie is fun, too, and very well done.