There are 2 titles associated with this person.

@book{ wphp_1071
  author={Liddiard,Jane Susanna Anna and Liddiard,William},
  year={1816},
  title={Mont St. Jean, A Poem, by William Liddiard; Theodore and Laura, A Tale, by I. S. Anna Liddiard, author of Kenilworth, and other poems.},
  publisher={Longman, Hurst, Rees, Orme, and Brown \& John Cumming},
  address={London},    }
@book{ wphp_1038
  author={Liddiard,William and Liddiard,Jane Susanna Anna},
  year={1819},
  title={Mount Leinster; or, the Prospect: a poem, descriptive of Irish scenery, &c. &c. &c.},
  publisher={Longman, Hurst, Rees, Orme, and Brown \& Richard Milliken},
  address={London},    }