There are 2 titles associated with this firm.

@book{ wphp_9781
  author={Blandy,Mary},
  year={1752},
  title={Original Letters to and from Miss Blandy and C- C-. In which is contain'd the artful Evasions he used to prevent his clearing his Character to her Father, and the whole History of that Parricide. These are the Letters supposed to be burnt, and which she gave her intimate Friend a few Days before her Execution, particularly desiring, if she had any Love for her, to publish them immediately after her Death, as they were his own Letters, and faithful of those she sent to him.},
  publisher={Sam Johnson},
  address={London},    }
@book{ wphp_6344
  author={Blandy,Mary},
  year={1752},
  title={Original letters to and from Miss Blandy and C- C-. In which is contain'd the artful evasions he used to prevent his clearing his character to her father, and the whole history of that parricide. These are the letters supposed to be burnt, and which she gave to her intimate friend a few days before her execution, particularly desiring, if she had any love for her, to publish them immediately after her death, as they were his own letters, and faithful of those she sent to him.},
  publisher={Sam Johnson},
  address={London},    }