There are 3 titles associated with this person.

@book{ wphp_9090
  author={Ennis,Alicia Margaret},
  year={1817},
  title={Memoirs of the Montague Family. In three volumes.},
  publisher={Edmund Lloyd [23 Harley Street] \& },
  address={London},    }
@book{ wphp_8261
  author={Ennis,Alicia Margaret},
  year={1820},
  title={Ireland; or, Memoirs of the Montague Family. In Three Volumes.},
  publisher={Edmund Lloyd [23 Harley Street] \& },
  address={London},    }
@book{ wphp_8226
  author={Ennis,Alicia Margaret},
  year={1820},
  title={The Contested Election; or A Courtier's Promises. In Three Volumes. Dedicated, by permission, to his Grace the Duke of Leinster, &c. &c By A.M. Ennis, Author of Ireland, or The Montague Family.},
  publisher={Minerva Press, A. K. Newman and Co.},
  address={London},    }