There are 3 titles associated with this firm.

The beauties of the poets: being a collection of moral and sacred poetry, from the most eminent authors. Compiled by the late Rev. Thos. Janes, of Bristol. London: Stephen Couchman, George, George, John and James Robinson, Elizabeth Newbery, George Wilkie [Paternoster Row], Thomas Vernor [Birchin Lane], John Parsons, William Darton and Joseph Harvey [Gracechurch], Thomas Boosey, 1792.
The beauties of the poets. Being a collection of moral and sacred poetry, from the most eminent authors. Compiled by the late Thomas Janes, of Bristol. London: William Darton and Joseph Harvey [Gracechurch], George, George, and John Robinson, Elizabeth Newbery, George Wilkie [Paternoster Row], John Parsons, Thomas Boosey, Thomas Hurst [St. Paul], James Wallis [Ivy Lane], 1799.
Parsons, Letitia. Verses, Hymns and Poems, on Various Subjects; Composed under a Long Series of Affliction and Deprivation of Sight. London: John Parsons, John Dickins [Market Street], 1806.