There are 20 titles associated with this firm.

@book{ wphp_795
  author={},
  year={1811},
  title={The Female Speaker; or, Miscellaneous Pieces in Prose and Verse, Selected from the Best Writers, and Adapted to the Use of Young Women by Anna Lætitia Barbauld.},
  publisher={Joseph Johnson and Co. \& },
  address={London},    }
@book{ wphp_15291
  author={Edgeworth,Maria},
  year={1812},
  title={Tales of Fashionable Life, by Miss Edgeworth, author of Practical Education, Belinda, Castle Rackrent, Essay on Irish Bulls, &c. In Six Volumes.},
  publisher={Joseph Johnson and Co. \& },
  address={London},    }
@book{ wphp_11605
  author={Peacock,Lucy},
  year={1812},
  title={The visit for a week; or, hints on the improvement of time. Containing original tales, Anecdotes From Natural And Moral History, &c. Designed for The Instruction and Amusement Of Youth. By Lucy Peacock.},
  publisher={John Harris [1802-1819, 1824-1843] \& },
  address={London},    }
@book{ wphp_8519
  author={Edgeworth,Maria},
  year={1813},
  title={Moral Tales, by Miss Edgeworth. In three volumes. Sixth edition.},
  publisher={Joseph Johnson and Co. \& },
  address={London},    }
@book{ wphp_8815
  author={Edgeworth,Maria},
  year={1813},
  title={Tales of Fashionable Life. By Miss Edgeworth, author of Practical Education, Belinda, Castle Rackrent, Essay on Irish Bulls, &c. In Six Volumes. The Fourth Edition.},
  publisher={Joseph Johnson and Co. \& },
  address={London},    }
@book{ wphp_733
  author={Edgeworth,Maria},
  year={1814},
  title={Continuation of Early Lessons. In two volumes.  By Maria Edgeworth.},
  publisher={Joseph Johnson and Co. \& },
  address={London},    }
@book{ wphp_9016
  author={Edgeworth,Maria},
  year={1814},
  title={Patronage.  By Maria Edgeworth, author of "Tales of Fashionable Life," "Belinda," "Leonora," &c. In Four Volumes. Second edition.},
  publisher={Joseph Johnson and Co. \& },
  address={London},    }
@book{ wphp_21875
  author={Edgeworth,Maria},
  year={1815},
  title={Continuation of Early Lessons. In two volumes.  By Maria Edgeworth. A New Edition.},
  publisher={Joseph Johnson and Co. \& },
  address={London},    }
@book{ wphp_11606
  author={Peacock,Lucy},
  year={1815},
  title={The visit for a week; or, hints on the improvement of time. Containing original tales, Anecdotes From Natural And Moral History, &c. Designed for The Instruction and Amusement Of Youth. By Lucy Peacock.},
  publisher={John Harris [1802-1819, 1824-1843] \& Charles Law and George B. Whittaker},
  address={London},    }
@book{ wphp_10632
  author={Edgeworth,Maria},
  year={1816},
  title={Continuation of Early lessons: in two volumes. The third edition. By Maria Edgeworth.},
  publisher={Rowland Hunter \& Robert Baldwin, Charles Cradock, and William Joy \& },
  address={London},    }
@book{ wphp_15233
  author={Aikin,Lucy},
  year={1816},
  title={Juvenile correspondence, or, Letters designed as examples of the epistolary style: for children of both sexes. By Lucy Aikin. The Second Edition.},
  publisher={Rowland Hunter \& Robert Baldwin, Charles Cradock, and William Joy \& },
  address={London},    }
@book{ wphp_9089
  author={Edgeworth,Maria},
  year={1817},
  title={Harrington, and Ormond, Tales, by Maria Edgeworth, Author of Comic Dramas, Tales of Fashionable Life, &c. &c. The Second Edition, Corrected. In Three Volumes.},
  publisher={Rowland Hunter \& Robert Baldwin, Charles Cradock, and William Joy \& },
  address={London},    }
@book{ wphp_24814
  author={Edgeworth,Maria},
  year={1818},
  title={Early lessons. In two volumes. By Maria Edgeworth. Sixth edition.},
  publisher={Rowland Hunter \& Robert Baldwin, Charles Cradock, and William Joy},
  address={London},    }
@book{ wphp_11607
  author={Peacock,Lucy},
  year={1818},
  title={The visit for a week; or, hints on the improvement of time. Containing original tales, Anecdotes From Natural And Moral History, &c. Designed for The Instruction and Amusement Of Youth. By Lucy Peacock.},
  publisher={John Harris [1802-1819, 1824-1843] \& Charles Law and George B. Whittaker \& },
  address={London},    }
@book{ wphp_1194
  author={Trench,Melesina},
  year={1820},
  title={A Monody on the Death of Mr. Grattan},
  publisher={James Ridgway [170 Piccadilly]},
  address={London},    }
@book{ wphp_10628
  author={Edgeworth,Maria},
  year={1821},
  title={Rosamond a sequel to Early lessons. By Maria Edgeworth; in two volumes.},
  publisher={Rowland Hunter \& Robert Baldwin, Charles Cradock, and William Joy \& },
  address={London},    }
@book{ wphp_10626
  author={Edgeworth,Maria},
  year={1822},
  title={Frank: a sequel to Frank in Early lessons. By Maria Edgeworth. In three volumes.},
  publisher={Rowland Hunter \& Robert Baldwin, Charles Cradock, and William Joy \& },
  address={London},    }
@book{ wphp_21880
  author={Edgeworth,Maria},
  year={1825},
  title={Frank; a sequel to Frank in Early lessons. By Maria Edgeworth. In three volumes. The Second Edition.},
  publisher={Rowland Hunter \& Robert Baldwin, Charles Cradock, and William Joy \& },
  address={London},    }
@book{ wphp_8341
  author={Edgeworth,Maria},
  year={1825},
  title={Harry and Lucy Concluded; Being the Last Part of Early Lessons. By Maria Edgeworth. In Four Volumes.},
  publisher={Rowland Hunter \& Robert Baldwin, Charles Cradock, and William Joy \& },
  address={London},    }
@book{ wphp_701
  author={Edgeworth,Maria},
  year={1827},
  title={Little Plays for Children. Vol. VII of The parent's assistant: The grinding organ; Dumb Andy; The dame school holiday.},
  publisher={Rowland Hunter \& Robert Baldwin, Charles Cradock, and William Joy \& },
  address={London},    }