There are 7 titles associated with this firm.

@book{ wphp_18243
  author={Leadbeater,Mary},
  year={1811},
  title={Cottage Dialogues Among the Irish Peasantry. By Mary Leadbeater. With Notes and a Preface by Maria Edgeworth, author of Castle Rackrent, &c.},
  publisher={Johnson & Warner \& },
  address={Philadelphia},    }
@book{ wphp_21304
  author={Goldsmith,Oliver},
  year={1811},
  title={The Grecian history, from the earliest state to the death of Alexander the Great. By Dr. Goldsmith. Two volumes in one. Fourth American edition.},
  publisher={B. B. Hopkins & Co. \& Bennett & Walton \& Mathew Carey [121 Chesnut Street] \& Thomas and William Bradford \& Johnson & Warner \& C. & A. Conrad & Co. \& Kimber and Conrad \& },
  address={Philadelphia},    }
@book{ wphp_21305
  author={Goldsmith,Oliver},
  year={1811},
  title={The Grecian history, from the earliest state to the death of Alexander the Great. By Dr. Goldsmith. Two volumes in one. Fourth American edition.},
  publisher={B. B. Hopkins & Co. \& Bennett & Walton \& Mathew Carey [121 Chesnut Street] \& Thomas and William Bradford \& Johnson & Warner \& C. & A. Conrad & Co. \& Kimber and Conrad \& },
  address={Philadelphia},    }
@book{ wphp_21380
  author={Johnson,Samuel},
  year={1811},
  title={The Lives of the most eminent English Poets; with Critical Observations on their Works. By Samuel Johnson, L. L. D. In three volumes.},
  publisher={William Durell [Pearl Street] \& },
  address={New York},    }
@book{ wphp_16304
  author={Aikin,John and Barbauld,Anna Laetitia},
  year={1813},
  title={Evenings at Home, or, The Juvenile Budget Opened. Consisting of a Variety of Miscellaneous Pieces, for the Instruction and Amusement of Young Persons. Third Edition.},
  publisher={Johnson & Warner \& },
  address={Philadelphia},    }
@book{ wphp_18080
  author={Kemble,Maria Theresa},
  year={1813},
  title={The day after the wedding; or, A wife's first lesson. A farce, as performed at the theatres, London and Philadelphia. The passages marked with inverted commas, are omitted in the representation.},
  publisher={Mathew Carey [121 Chesnut Street]},
  address={Philadelphia},    }
@book{ wphp_17987
  author={Hutton,Catherine},
  year={1814},
  title={The miser married. A novel. In two volumes. By Catherine Hutton.},
  publisher={Mathew Carey [121 Chesnut Street]},
  address={Philadelphia},    }