There are 6 titles associated with this firm.

@book{ wphp_19283
  author={Rowe,Elizabeth Singer},
  year={1816},
  title={Devout exercises of the heart, in meditation and soliloquy, prayer and praise. By the late pious and ingenious Mrs. Elizabeth Rowe. Abridged for the use of the Methodist Society.},
  publisher={Joshua Soule and Thomas Mason \& },
      }
@book{ wphp_17016
  author={Cooper,Mary and Clarke,Adam},
  year={1816},
  title={Memoirs of the late Mrs. Mary Cooper, of London; who departed this life June 22, 1812, in the twenty-sixth year of her age. Extracted from her diary and epistolary correspondence. By Adam Clarke, LL.D. First American, from the last London edition.},
  publisher={Joshua Soule and Thomas Mason \& },
  address={New York},    }
@book{ wphp_17017
  author={Cooper,Mary and Clarke,Adam},
  year={1818},
  title={Memoirs of the late Mrs. Mary Cooper, of London; who departed this life June 22, 1812, in the twenty-sixth year of her age. Extracted from her diary and epistolary correspondence. By Adam Clarke, LL.D. Second American edition.},
  publisher={Joshua Soule and Thomas Mason \& },
  address={New York},    }
@book{ wphp_20218
  author={Thayer (née Warren),Caroline Matilda},
  year={1818},
  title={Religion recommended to youth, in a series of letters, addressed to a young lady. To which are added, Poems on various occasions. By Caroline Matilda Thayer. Second Edition.},
  publisher={Joshua Soule and Thomas Mason \& },
  address={New York},    }
@book{ wphp_17483
  author={Fletcher,Mary and Moore,Henry},
  year={1818},
  title={The life of Mrs. Mary Fletcher, consort and relict of the Rev. John Fletcher, vicar of Madely, Salop. Compiled from her journal, and other authentic documents. By Henry Moore.},
  publisher={Joshua Soule and Thomas Mason \& },
  address={New York},    }
@book{ wphp_20219
  author={Thayer (née Warren),Caroline Matilda},
  year={1819},
  title={Religion recommended to youth, in a series of letters addressed to a young lady. To which are added, Poems on various occasions. By Caroline Matilda Thayer. Third Edition.},
  publisher={Joshua Soule and Thomas Mason \& },
  address={New York},    }