There are 4 titles associated with this firm.

Gregory, John, Hester M. Chapone, and Catherine Talbot. A Father’s Legacy to His Daughters. By Dr. Gregory. A Letter to a New-Married Lady. By Mrs. Chapone. &c. London: John Sharpe [Duke Street], 1828.
Chapone, Hester M. Letters on the Improvement of the Mind. Addressed to a Lady. By Mrs. Chapone. London: John Sharpe [Duke Street], 1829.
Taylor, Jane, Mary Tighe, Miss Stewart, Amelia Opie, Mary R. Mitford, Letitia E. Landon, Mary Howitt, Felicia Hemans, Emma C. Embury, Caroline Bowles, Elizabeth O. Benger, and Anne Bannerman. The Laurel. Fugitive Poetry of the XIXth Century. London: John Sharpe [Duke Street], 1830.