There are 3 titles associated with this firm.

@book{ wphp_8523
  author={Hatfield,Sarah},
  year={1801},
  title={She Lives in Hopes; or, Caroline. A Narration Founded Upon Facts. By Miss Hatfield, of Manchester. (By Permission) Dedicated to her Royal Highness the Princess of Orange and Nassau. In Two Volumes.},
  publisher={},
  address={London},    }
@book{ wphp_8616
  author={Vanzee,Maria},
  year={1803},
  title={Fate; or, Spong Castle. By Maria Vanzee.},
  publisher={Parsons and Son},
  address={London},    }
@book{ wphp_8639
  author={Thomson,Anna and Thomson,Harriet},
  year={1804},
  title={The Pride of Ancestry: or, Who Is She? A Novel. In Four Volumes. By Mrs. Thomson, author of Excessive Sensibility—Fatal Follies—The Labyrinths of Life—Geraldine—and Robert and Adela, &c.},
  publisher={Parsons and Son},
  address={London},    }