There are twenty-six letters from Charles Dickens to Mrs Gaskell; three letters from Dickens to the Reverend William Gaskell (numbers 14, 18 and 300; and a single letter from W.H. Wills at the office of Household Words to Mrs Gaskell. In number 3, the signature is cut away.
Letters to Elizabeth and William Gaskell from Charles Dickens
Scope and Content
See also Tyson, A review and other writings by Charles Dickens (Manchester: Manchester University Press, 1934), pp. 18-19.