The only biography which Mrs. Gaskell wrote was The Life of Charlotte Brontë, which is one of the best biographies ever written. It has now become a classic. At the time of her death, in 1865, Mrs. Gaskell was collecting material for a Life of Madame Sévigné.
Mrs. Gaskell has written very little that is autobiographical. She always studied to keep herself in the background, though her stories contain much that is based on her own life.
Autobiographical
Mary Barton
Preface to the Original Edition of 1848
Three years ago I became anxious (from circumstances that need not be more fully alluded to) to employ myself in writing a work of fiction. Living in Manchester, but with a deep relish and fond admiration for the country, my first thought was to find a framework for my story in some rural scene; and I had already made a little progress in a tale, the period of which was more than a century ago, and the place on the borders of Yorkshire, when I bethought me how deep might be the romance in the lives of some of those who elbowed me daily in the busy streets of the town in which I resided. I had always felt a deep sympathy with the care-worn men, who looked as if doomed to struggle through their lives in strange alternations between work and want; tossed to and fro by circumstances, apparently in even a greater degree than other men. A little manifestation of this sympathy, and a little attention to the expression of feelings on the part of some of the workpeople with whom I was acquainted had laid open to me the hearts of one or two of the more thoughtful among them; I saw that they were sore and irritable against the rich, the even tenor of whose seemingly happy lives appeared to increase the anguish caused by the lottery-like nature of their own. Whether the bitter complaints made by them of the neglect which they experienced from the prosperous—especially from the masters, whose fortunes they had helped to build up—were well-founded or no, it is not for me to judge. It is enough to say, that this belief of the injustice and unkindness which they endure from their fellow-creatures taints what might be resignation to God’s will, and turns it to revenge in many of the poor uneducated factory-workers of Manchester.