There are 4 titles associated with this person.

@book{ wphp_6600
  author={Guppy,Sarah and De La Garde,Mary},
  year={1800},
  title={Essays on various subjects: in which some characters of the present age are introduced. By M. de la Garde, Formerly of the Island of Jersey, and Author of the Candid Friend. Second edition. To which is added some poetical pieces, by Mrs. Guppy.},
  publisher={},
  address={Bristol},    }
@book{ wphp_13364
  author={Guppy,Sarah},
  year={1800},
  title={Instructive & entertaining dialogues for children. By Mrs. Guppy.},
  publisher={},
  address={Bristol},    }
@book{ wphp_17682
  author={Guppy,Sarah},
  year={1808},
  title={Instructive and entetaining [sic] dialogues for children. By Mrs. Guppy. First American Edition.},
  publisher={Jacob Johnson \& },
  address={Philadelphia},    }
@book{ wphp_13406
  author={Guppy,Sarah},
  year={1833},
  title={Instructive & entertaining dialogues for children. By Mrs. Guppy. Fourth edition.},
  publisher={Edward Wallis [Skinner Street] \& },
  address={London},    }