"As I never saw my father or my mother, and never saw any likeness of either of them (for their days were long before the days of photographs), my first fancies regarding what they were like, were unreasonably derived from their tombstones. The shape of the letters on my father's, gave me an odd idea that he was a square, stout, dark man, with curly black hair. From the character and turn of the inscription, "Also Georgiana Wife of the Above", I drew a childish conclusion that my mother was freckled and sickly."

Source: Charles Dickens (2013). “Delphi Complete Works of Charles Dickens (Illustrated)”, p.7092, Delphi Classics