There are 2 titles associated with this person.

@book{ wphp_1279
  author={Erskine,Frances},
  year={1830},
  title={Gertrude; A Tale of the Sixteenth Century. In Two Volumes.},
  publisher={Henry Colburn and Richard Bentley \& },
  address={London},    }
@book{ wphp_1326
  author={Erskine,Frances},
  year={1832},
  title={The Affianced One. By the Author of “Gertrude.” In Three Volumes.},
  publisher={Edward Bull \& },
  address={London},    }