There are 2 titles associated with this person.

@book{ wphp_9081
  author={Sullivan,Mary Ann},
  year={1816},
  title={Owen Castle, Or, Which is the Heroine? A Novel. In Four Volumes. Dedicated by permission to the Right Honourable Lady Combermere, By Mary Ann Sullivan, late of the Theatres Royal, Liverpool, Manchester, Newcastle, Birmingham, and Norwich.},
  publisher={W. Simpkin and R. Marshall \& },
  address={London},    }
@book{ wphp_9082
  author={Sullivan,Mary Ann},
  year={1823},
  title={Owen Castle, Or, Which is the Heroine? A Novel. In Four Volumes. By Mary Ann Sullivan, Late of The Theatres Royal, Liverpool, Manchester, Newcastle, Birmingham, and Norwich. Second Edition.},
  publisher={W. Simpkin and R. Marshall \& },
  address={London},    }