There are 4 titles associated with this firm.

@book{ wphp_10111
  author={Gregory,John and Chapone,Hester Mulso and Talbot,Catherine},
  year={1828},
  title={A Father’s Legacy to His Daughters. By Dr. Gregory.  A Letter to a New-Married Lady. By Mrs. Chapone. &c.},
  publisher={John Sharpe [Duke Street]},
  address={London},    }
@book{ wphp_9647
  author={Cottin,Sophie Ristaud},
  year={1828},
  title={Elizabeth; or, the Exiles of Siberia. A Tale, Founded Upon Facts. From the French of Madame Cottin. The original translation revised and corrected.},
  publisher={John Sharpe [Duke Street] \& },
  address={London},    }
@book{ wphp_13344
  author={Chapone,Hester Mulso},
  year={1829},
  title={Letters on the Improvement of the Mind. Addressed to a Lady. By Mrs. Chapone.},
  publisher={John Sharpe [Duke Street] \& },
  address={London},    }
@book{ wphp_11384
  author={Taylor,Jane and Tighe,Mary and Stewart,Miss and Opie,Amelia and Mitford,Mary Russell and Landon,Letitia Elizabeth and Howitt,Mary and Hemans,Felicia and Embury,Emma Catherine and Bowles,Caroline and Benger,Elizabeth Ogilvy and Bannerman,Anne},
  year={1830},
  title={The Laurel. Fugitive Poetry of the XIXth Century.},
  publisher={John Sharpe [Duke Street] \& },
  address={London},    }