Dolly Varden is a character from 'Barnaby Rudge: A Tale of the Riots of Eighty' (commonly known as 'Barnaby Rudge'). 'Barnaby Rudge' was one of two novels (the other was 'The Old Curiosity Shop') that Dickens published in his short-lived (1840–1841) weekly serial 'Master Humphrey's Clock'. 'Barnaby Rudge' is largely set during the Gordon Riots of 1780.

In the year 1775, on a foul winter evening, Soloman Daisy, one of the three cronies of John Willet who is the proprietor of Maypole is telling the tale of the murder of Reuben Haredale, the owner of an estate called Warren, that happened on the same day 22 years back. The suspects were their gardener and steward, but with the steward’s deceased body being recovered later, the missing gardener was the prime suspect of this murder. The estate is now resided by Reuben’s brother Geoffrey and Reuben’s daughter, Emma Haredale.

John Willet treats his 20 year old son Joe like a kid and fed up of the treatment goes to be a soldier. He says goodbye to the woman he loved, Dolly Varden, daughter of the locksmith Gabriel Varden.

Another man named John Chester wants his son, Edward to marry a woman with inheritance. Edward is in love with Emma Haredale, but the enmity between Sir John and Emma’s uncle Geoffrey doesn’t let them unite. Edward goes to the West Indies in frustration. Barnaby, a locale’s mother was receiving annual compensation from Geoffrey but leaves the city to escape a stranger whom she had tried to protect.

More Info: en.wikipedia.org