There are 4 titles associated with this firm.

@book{ wphp_11065
  author={Trimmer,Sarah},
  year={1803},
  title={A new series of prints accompanied by easy lessons: being an improved edition of the first set of Scripture prints from the Old Testament. By Mrs. Trimmer.},
  publisher={John Hatchard [190 Piccadilly] \& John Harris [1802-1819, 1824-1843] \& B. Tabart \& },
  address={London},    }
@book{ wphp_10944
  author={Trimmer,Sarah},
  year={1803},
  title={A new series of prints accompanied by easy lessons: containing a general outline of antient history. By Mrs. Trimmer.},
  publisher={John Hatchard [190 Piccadilly] \& John Harris [1802-1819, 1824-1843] \& B. Tabart \& },
  address={London},    }
@book{ wphp_10941
  author={Trimmer,Sarah},
  year={1803-1804},
  title={A new series of prints accompanied by easy lessons: containing a general outline of Roman history. By Mrs. Trimmer.},
  publisher={John Hatchard [190 Piccadilly] \& John Harris [1802-1819, 1824-1843] \& B. Tabart \& },
  address={London},    }
@book{ wphp_10281
  author={Sandham,Elizabeth},
  year={1804},
  title={More trifles! : for the benefit of the rising generation. By the author of "Juliana" --"Trifles, or, Friendly mites," --"Eason House," --"Addresses of an affectionate mother," &c.&c.},
  publisher={John Harris [1802-1819, 1824-1843] \& },
  address={London},    }