Mr. Haggerston (called Mr. Stone by Lydia Bennet) is the attorney who writes Lydia Bennet's settlement when she marries George Wickham. He calls Edward Gardiner away upon business on the day of Lydia's wedding, and she thought her uncle wouldn't be able to walk her down the aisle and Fitzwilliam Darcy would have to instead; however, the business was settled in time.